Why Yogurt and Probiotics Make You Fat and Foggy

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Your gut biome (the bacteria living in your intestines) is crucial to your health. The overuse of antibiotics, diets high in processed foods, and foods containing histamines are your gut biome’s worst nightmare. When your gut bacteria get thrown off, you can develop something called histamine intolerance, which leads to increased inflammation, congestion, hives, migraines, and fatigue – just to name a few symptoms. Even if you have a lot of DAO enzymes (the molecule that breaks down histamines) you may not be able to keep up with the amount of histamines in the foods you eat, especially if you eat lots of aged and fermented foods, or microbiologically produced foods, like the standard American diet’s favorite “health food” – yogurt.

If you’re already concerned about your gut bacteria, and you take probiotics to help those bacteria flourish, you may be doing the exact opposite of what you want, depending on the specific bacteria that you’re supplementing. For example, if you’re taking a histamine-producing bacteria in yogurt like Lactobaccillus casei, you’ll be doing more harm than good. That’s why it’s important to be aware of which bacteria produce histamines, which degrade them, and which don’t affect them at all. Foods in the Bulletproof® Diet’s green zone are low in histamine so you don’t feel foggy and fatigued.

Yes, you read the title of this post correctly. You’re about to read how yogurt and some probiotics negatively affect our gut bacteria, which is an unknown culprit in making people fat and foggy headed.

For the past 30 years, obesity and autoimmune disease rates have been on a steady rise. At the same time, a little-known condition called histamine intolerance has become much more common. It’s a challenge to figure out the root causes and common denominators for these three seemingly unrelated health trends.

Lots of research shows that an unhealthy gut contributes to obesity, diabetes, rheumatoid arthritis, autism, depression, and chronic fatigue. The gut biome (intestinal bacteria), your diet, and the gut lining determine gut health. Modern lifestyle factors like the overuse of antibiotics, and diets high in processed, preserved, and histamine producing foods (i.e. most conventional yogurt), all contribute to an unhealthy gut biome. To repair an unhealthy gut and decrease histamine intolerance you need to eat an anti-inflammation diet, minimizing histamine producing bacteria and maximizing histamine degrading bacteria.

This isn’t just science to me – it’s personal. My history of 15 years of heavy antibiotic use for chronic sinus infections as a young man set me up to have a histamine intolerance. Biohacking that problem helped me to discover the histamine connection years ago, but the link to the gut biome was quite elusive.

Why Your Gut Biome has Changed and Why Probiotics Have Become So Important

The human gut biome (microbiome) consists of about 100 trillion bacteria cells – more than  10 times more than there are human cells in your body. You could even start to think of your gut biome as a significant organ in your body, so keeping it healthy and balanced is essential to reduce disease and optimize performance. As we learn more about the makeup of good and bad bacteria in the gut biome, researchers are also doing cutting edge DNA microbiome sequencing to show how people’s gut biomes are changing on a population level.

Gut biomes are becoming imbalanced because there are less good bacteria and more bad bacteria available in modern lifestyles and the standard American diet. When microbiota balance is out of whack, your body develops chronic inflammation, which can become autoimmune disease or other serious health problems. New research even suggests that diabetes may be an autoimmune disease triggered by poor gut health.1

By now, most people know that one contributor to a broken microbiome is overuse of antibiotics. Antibiotics may wipe out whatever bad bacteria you were hoping they would, but they can also clear your system of the really good bacteria that promote a healthy gut. A number of studies show that even a single course of antibiotics can permanently alter the gut flora.2,3

Aside from antibiotics overuse, poor diets and environmental toxins also wreak havoc on the gut by wearing down the protective barriers of the intestinal walls, eventually creating a leaky gut. As I’ve written previously, foods that are heavily processed, preserved, and filled with chemicals and toxins, damage gut health. Common types of these gut-damaging foods include: gluten, processed meats, sugar, most alcohol, mold toxins from coffee and chocolate, and more. These foods increase histamine levels, which in part is due to bad bacteria. I will go into more detail about histamine inducing bacteria in foods later in this post.

One of the reasons I’m such a fan of fresh, organic, local meat and vegetables is that our gut bacteria ultimately are related to our soil bacteria. Soil bacteria are the microbiome of the planet. Industrial agriculture has permanently modified soil organisms – molds and bacteria – so that they produce more toxins than ever before in history. The genes that form those toxins get shared with the bacteria growing in your gut.

Since the advent of antibiotics, scientists have been all over fighting bad bacteria. Now they are beginning to understand the importance of good bacteria and microorganisms in our guts. This “good bacteria” theory led to taking supplemental probiotics as the go-to way to help re-populate our guts after courses of antibiotics or other stressors. Although some probiotics are good for you, sadly (for yogurt companies especially), most manufactured probiotics are only minimally effective at re-populating the gut biome. It is becoming apparent that not all strains of probiotics interact with the gut in the same way.

Histamine Intolerance and Which Bacteria to Avoid

Disturbance in gut biome also plays a significant role in creating the recent rise in histamine intolerance. Histamine intolerance is the result of an imbalance between the breakdown of histamine and its buildup in the gut. This is generally caused by a deficiency in the DAO enzymes (found in intestinal mucosa) that helps metabolize and breakdown dietary sources of histamine.

A histamine overload leads to increased inflammation and many other symptoms including: skin irritation, hives, throat tightening, increased heart rate, nasal congestion, migraines, fatigue, heartburn, reflux, and weight gain.4 Unlike other food allergies and sensitivities, the response from histamine intolerance is cumulative and not always immediate, so it is harder to pin point right away. 5,6

This is personal – I’m histamine intolerant but have been able to reduce my intolerance dramatically following the advice I’m sharing in this post.

**Sneak peak into a future post: Histamine is not the only bioactive substance that can lead to histamine intolerance. Biogenic amines also interact with DAO enzymes in the gut.**

Although there are some genetic causes for a decrease in the production of DAO enzymes, the change in people’s gut biome is also responsible for histamine intolerance. Even if someone has a normal production of DAO enzymes, the levels may still be insufficient when placed against high concentrations of histamine-rich foods and histamine producing bacteria.

Many of the histamine-rich foods are found in the red (toxic) areas of the Bulletproof® Diet Roadmap, but some common sources of histamine-producing foods are surprising. The following foods often have higher histamine contents or help release stored histamine:

  • Matured or fermented foods (depending on the bacteria and yeasts that are involved in the process): Sauerkraut, Kombucha, pickles, fermented SOY products, soy sauce, fish sauce, fermented coffee (Upgraded Coffee is safe). Some fermented foods are acceptable as long as it doe not cause a negative reaction.
  •  Microbiologically produced foods: Most yogurt, buttermilk, kefir, mature cheese, sauerkraut, wine (especially reds)
  • Processed, smoked, and fermented meats: Lunchmeat, crappy bacon, sausage, pepperoni, salami, etc.
  • Alcohol: Red wine, white wine, champagne, beer
  • Yeasty Foods: breads made with yeast
  • Certain Vegetables, Fruit, and Nuts: tomato, canned vegetables, strawberries, kiwi, pineapple, peanuts, cashews, walnuts, and more.

Different types of bacteria and probiotics also play a part in histamine regulation. Some probiotics are necessary for proper gut function (where histamine lowering enzymes DAO form), but some strains actually raise histamine levels. The different strains of studied probiotics are categorized as (1) histamine producing bacteria, (2) neutral bacteria, or (3) histamine degrading bacteria.7-1

  1. Histamine producing bacteria: Lactobacillus casei, Lactobacillus reuteri, and Lactobacillus bulgaricus (Found in most yogurts and fermented foods).
  2. Neutral bacteria: Streptococcus thermophiles (also in yogurt) and Lactobacillus rhamnosus (shown to down regulate histamine receptors and up-regulate anti-inflammatory agents)
  3. Histamine degrading bacteria: Bifidobacterium infantis (found in breast milk), Bifidobacterium longum, Lactobacillus plantarum, and some soil-based organisms.

Some of these bacteria form histamine when they break down protein in foods, even vegetables, whether the food is in your gut or fermenting in your kitchen. Now you know why I’m skeptical about throwing a bunch of cabbage into a bucket to let it ferment. You just don’t know what you’re getting.

The Probiotic Bulletproof® Coffee Failed Experiment

Four months ago, I had a brilliant idea. I’d add a prebiotic (food for probiotics) called fructooligosaccharide to my Bulletproof® Coffee in the morning, and take a probiotic with it. Over the last decade, I estimate I’ve spent around $25,000-$50,000 on various strains of probiotics to fix my gut, including the time I took pig whipworm eggs. Anyway, I took an “acidophilus pearl” capsule because those were convenient and I was out of my normal probiotic. The one I took had lactobacillus casei, a histamine producing bacteria in it.

The result? I gained 10 pounds in seven days, with a noticeable inflammation in the gut. I stopped the probiotics and it took 7 days to lose the weight.

Probiotic supplementation is a catch-22 and you should not just grab whatever has the best label on the shelf. If you have histamine intolerance, or you want to avoid developing it, experiment with avoiding histamine producing bacteria and focus on histamine degrading or neutral bacteria.

So just toss out the Lactobaccillus casei from your cupboards and fill your refrigerator with Bifidobacterium longum, right?! Uh… yeah… The good news is there are protocols, diets, and product already developed to help you reduce histamine-rich foods, avoid histamine producing bacteria, and consume more histamine degrading bacteria.

3 Ways to a Healthy Gut Biome and Reduce Histamine Intolerance

#1) Follow the Bulletproof® Diet to heal your gut:

Eat a low histamine, anti-inflammatory diet like the Bulletproof® Diet as the primary way to protect your gut and reduce histamine intolerance. Eating prebiotic foods that selectively stimulate the growth of good bacteria in your gut is also helpful. Prebiotic foods in the ‘green portions’ of the Bulletproof® Diet include: Jerusalem artichoke, avocados, and vegetables high in soluble fiber like sweet potatoes, Brussels sprouts, asparagus, and turnips. Onions are in the yellow zone because of what they do to alpha brain waves, but they also have prebiotics in them.

Self-tracking tools like the Bulletproof® Food Sense App help to detect physiological responses to foods you are sensitive too that may be due to excess histamine concentration. Although histamine intolerance can be difficult to diagnose, one of the common symptoms is an elevated heart rate. Using the Food Sense App after meals (as instructed) will use the iPhone’s camera sensor to measure your heart rate and compare it to your baseline heart rate. If there was an increase of more than 16 beats per minute, then this signifies a food sensitivity and helps you zoom in on gut wrecking or histamine-rich foods.

#2) Reduce histamine producing bacteria

Avoid histamine producing bacteria like Lactobacillus casei, Lactobacillus reuteri, and Lactobacillus bulgaricus that are mostly commonly found in the majority of yogurts and fermented foods, especially when they are not balanced by other species. Rampant unbalanced focus on lactobacillus in yogurt has led to this problem.

#3) Increase histamine degrading bacteria

Finding ways to get more histamine degrading bacteria into your diet can be difficult, but is great for gut health and key to reducing histamine intolerance. High phenol foods like blueberries, coffee, and chocolate can feed a type of gut bacteria called firmacutes.

My favorite (best tasting) source of balanced bacteria is a yogurt-like product, called Amasi, that contains 30 carefully controlled strains of bacteria. Traditionally, Amasi is the renowned drink of the Masai warrior tribes in Northern Tanzania and Kenya and is known for its rich variety of beneficial bacteria and highly bioavailable nutrients.

As you might have heard on podcast episode #47 with Jordan Rubin, founder of Beyond Organic and creator of Amasi, he replicated the Masai tribes’ production system to produce Amasi from grass fed, antibiotic free, cow’s milk. Rubin even went to the extent to make sure he used the same genetic breed of the Masai’s cows to assure they have non-inflammatory kind of casein (Beta casein A2).

The fermentation of the Amasi is influenced by key histamine degrading bacteria: Lactobacillus plantarum, Bifdocaterium lactis, and Bifidobacterium longum.13,14 These particular strains not only lower histamine levels, reduce inflammation, and improve digestion, but Amasi as a whole food helps improve absorption of specific nutrients such as vitamin B6, B2, and K, folic acid, niacon, and zinc.

MLM alert – Beyond Organic, the creator of Amasi, is a multilevel marketing company. I despise that business model because it usually victimizes needy people, and it leads to low quality or high prices. Long discussions with Jordan and an evaluation of his standards and pricing lead me to believe that Beyond Organic is not out to victimize people and is charging a fair price for impossibly high quality dairy. I did not decide to mention a MLM company lightly and did so after great diligence. It is a decision made with integrity.

Beyond Organic has gone to great lengths to do everything right in creating a truly transformative dairy product. I have never seen anything like it and Amasi is the only yogurt-like food my body has been able to digest flawlessly, and it tastes great!  Amasi is a great way to allow a little bit of yogurt into your life and still feel perfectly normal afterwards.

Beyond Organic also sells an assortment of Bulletproof approved foods and beverages beyond Amasi that will help upgrade your gut health and mental performance, including: Omega powder, grass-fed low histamine beef jerky, almonds, and herbs.

Click to read the complete list of references.

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By Dave Asprey

  • Raitis Kalnins

    I’m doing research on prebiotics, to be more specific on xylo-oligosaccharide (XOS) extraction using benign and green technologies. XOS are more effective than fructo-oligosaccharides but not yet comercially available (as far as I know). If anybody wants to dive into the subject of prebiotics, I recommend a book “Prebiotics and Probiotics Science and Technology” by Charalampopoulos & Rastall (eds.): http://www.springer.com/food+science/book/978-0-387-79057-2

    • mike

      Looks interesting for a $549 book!

      • MT_Dreams

        Ha! I had the same thought. enter my internet savy to get around that kind of cost for a book. A quick google search using the title of the book and ‘kilibro’ will give you a free preview of the book

  • Joseph

    Maybe off-topic… doesn’t *Modafinil* use the Histamine mechanism in a certain way? I love the stuff, but react to it badly (painful gums, bumps in the month & such) and understand that it is because it somehow ups Histamine response in the body. Could this be because I’ve not been ‘Bulletproof-enough’, and still have work to do on my inner ecology? For the last ~6mos, I’ve eaten cultured veggies & (coconut) keifer w/ most of my meals… Is there a (possible) connection here?

    • James

      Similar response the I started eating sweet potatoes for every meal last week (I was able to cook for myself wife was away) and it really made a huge difference. After going back to the same way of eating I started to feel crappy again. After reading your comment found out that sweet potatoes are anti-histamine. So my suggestion is to read up on the anti-histamine food and add them in your diet

  • BillBixsby

    This is terrible! I had been hooked on Kefir for years and stopped once I went bulletproof. However, I have been using “Green Vibrance” powder everyday (http://www.amazon.com/gp/aw/d/B000NDME6C). It’s a green drink powder that also contains probiotics.

    Should I stop that immediately? Anyone (especially Dave) recommend any other “green powders”, or is there some bad news in general about them that I don’t know about. Thanks!

    • Tracker

      Stop taking it for a period of time, maybe 2 weeks Then start taking it again for 2 weeks. Try to keep the rest of your diet pretty consistent. Then decide whether to continue to take it based on the positive or negative effects you notice during each period.

      I imagine a product like this some people would have good reactions and some people negative, and some no noticeable reactions. Or maybe it has the perfect probiotic blend by accident. The only way to know for sure is to experiment, which is really what bio-hacking is all about.

  • Angell

    @dave how should you consume the packs? Also can you recommend a pill form of the histamine degrading bacteria?

    • Hindredd Biggs

      Good idea, does it exist yet? Maybe that is a new idea for a product which Dave might put out. ?

  • Parker


    Hope you’ve been well and interesting piece. Wondering…I’ve had similar issues and an ongoing battle with sinus issues which are now affecting the eustachian tubes. Thoughts (or research/feedback) on how this would translate?

  • Katie

    Is taking Primal Defense ok? (also Jordan’s product)

  • Brandon

    What brands of Kombucha can you recommend if any?

  • thelowhistaminechef

    Hi Dave, great post! I was initially diagnosed with histamine intolerance, clarified as mast cell activation disorder just recently. I’ve “healed” my 50+ symptoms through a high nutrient, antihistamine and anti-inflammatory diet.

    I’ve written extensively about the need to specifically use histamine and inflammation lowering strains. In our recent interview immunologist Dr Janice Joneja spoke about third generation probiotics that (to use a colourful turn of phrase) poop out diamine oxidase. She lacks funding sadly to pursue this avenue of research. I keep stressing to people the importance of not using a “throwing spaghetti against the wall to see what sticks” approach to treating histamine disorders – which is unlikely to go down well for those with a highly reactive immune system.

    Can’t wait to read more!

  • Brian

    Dave, I am a long time sufferer of Sinus-infections – well since I turned twenty and had my left sinus cavity damaged when I was hit in the face a Jose Cuervo bottle (I will save that story for another post!). For the last twenty some odd years, I would get sinus infections to a tune of about three or four a year – no fun. It got so common place, that I could instantly tell I was getting an infection just from the way my body felt.

    I had always consumed yogurt, even Organic varieties for many years. For the last year, I have not had any yogurt as I have been trying to eliminate dairy from my diet – low and behold (virtual knock on wood) no sinus infections.


    • Christopher Fowler

      I had 2-3 sinus infections per year from age 12-26 when I stopped dairy.I stopped getting the infections fro a decade,added raw dairy 2 years ago and withing 1 year I had tonsillitis,quit again and have been perfectly healthy since and I’m 38 now.

  • foxylibrarian

    I’m so saddened and disheartened to learn the dangers of fermented foods due to destruction of the soil biome. I had become an evangelist of ferments and Sandor Katz because of personal experience. Just by adding sauerkraut to my diet – fermented myself for 16 weeks in an anaerobic Picklit container, which is far longer than commercial brands because the longer length reduces histamines – I shed 20 pounds of tenacious baby weight effortlessly and am no longer preoccupied by food. The candida and other bad gut bugs are no longer the boss of me, in other words! Would it still be acceptable to ferment if I add a known, established culture like the kind Body Ecology sells, instead of taking my chances with a wild ferment? Or is it simply not worth the risk? Thank you so much for all you do…

    • Will

      Ummm I think that your results show that what you’re doing is working. Please don’t change something just because you read an alternative opinion on the internets.

      • MilkJug Johnson

        ^ This. If you run into problems down the road, then keep this post in mind and you can try removing the fermented foods and see if it helps.

        I don’t think Dave got to where he is (a state of optimal performance customised for his own unique body) by blindly following instructions on a blog. You gotta adapt everything to fit your own needs, because they will be at least slightly different from other people. Experimentation is key.

    • Joyce

      What is the Body Ecology Starter called? I used the starter culture that was on the the Picklit website, but am not home and can’t remember what it is called. Thanks!

    • MAria

      Hello, I am very surprised why sauerkraut is not recommended as a healthy gut food. I am Polish and sauerkraut – HOME MADE- as you call it WILD ferment – has always been present in my diet. Traditionally it’s served with heavier, greasier, foods. A must to add to the mixture is caraway, which improves digestion and enhances natural fermentation – that is production of lactic acid in the cabbage. It’s know for containing more vitamin C than lemons! It’s great for clear skin, digestion issues. weight loss. Sauerkraut juice is a good hangove cure! In Asia same applies to Kim chi! I really think bulletproof author tries to re-invent the wheel sometimes. People have been pickling ( No vinegar just natural fermentation) for thousands year and added to longevity. Viva la sauerkraut! Let me know if you want a bulletproof sauerkraut recipe from a Polish mom.

  • Tom

    so we can’t eat ANYTHING. May as well die. What about Russians who have been consuming kefir & kombucha and Bulgarians with their yogurt and 100+ year life spans ?

    I’ve tried bulletproof but it’s really not feasible for anyone but rich dot com millionaires. If what you say really is in the food supply it’s everywhere, and grass fed pastured meats are really a luxury. You can do some, but not all. When I was doing it strictly I lost no weight at all. I didn’t gain, but I didn’t lose. I think there are holes in your theories and different biological things at play, especially hormones and other things. Good body of work but really impossible for most people and really expensive…

    • Rocknrope

      Totally agree. I think I’m done with this, outside of observing it as an interesting alternative opinion. I did Bulletproof Coffee/Intermittent Fasting since last October – didn’t lose or gain any weight. I started eating breakfast and modifying other parts of my diet (eating protein at each meal, probiotics and fish oil, and eating slowly) and lost a couple of pounds this week.

      • Tom

        I did the fasting too and there wasn’t much difference to eating some bacon or a few eggs in the AM… It *is* interesting and I will continue reading this material, but let’s face it if he’s right and EVERYTHING has these mycotoxins then I can’t escape it. Also, maybe not everyone is sensitive to mycotoxins and also maybe one person has Thyroid, or endocrine low T, etc and that’s why they can’t lose substantial weight. I am looking into Semoralin injections at a doctor. Many guys losing all sorts of weight and putting on muscle on that and I can’t find any side effects. They say it’s the fountain of youth but you need a doctor to administer and monitor but it’s natural.

      • KarenLA

        While I like the bulletproof coffee in the morning and don’t eat until 1 or 2, I find I can’t stop eating after I break the fast. I’ll have a meal, then at 3p.m or so be ravenous. I haven’t lost any weight either. But at the same time, I found my body not being thrilled with the fermented food that the GUT people swear by. I have found that taking a digest pill, followed by Hydrocchloric acid to be extremely helpful and a must for the gut. I recommend Dr. Bob Marshall’s Premier Research Lab, which has superior products. I am also following Jorge Cruise’s 100 diet that counts sugar. He is fine with coffee grass butter and chocolate, so is there a dove tail with bulletproof coffee. It is reducing the belly fat. I find I tolerate raw yogurt better than organic. However, it is a pain to make.

        • Rocknrope

          I liked the bulletproof diet because I didn’t have to think about food until midday, and I was never that hungry for breakfast in the morning. But I too did find that my calories skewed heavier in the evening. Now there’s data that says time shouldn’t matter when it comes to caloric intake, but i haven’t lost any weight (nor gained.)

          I’m trying to minimize the pills and supplements I take and trying to solve whatever issues I have with diet, which I believe is completely doable. I never bought into Dave’s idea that you need to take 40 different pills and supplements to feel optimal – it’s just not a practical way for most human beings to live.

        • Frasier Linde

          Are you eating plenty of fat in that first meal? Making it high-fat, moderate-protein, low-carb should keep your appetite under control.

      • parker

        There are many diets that are anti-inflammatory which are affordable; after reading Dave’s article/posting a question, I realized around six years ago I did the Zone. Controlled calories so no insulin spikes (which can be caused by overeating at any meal…carbs or protein), low GI foods, elimination of foods Dr. Sears indicated were inflammatory and the program worked wonders. Why I ever got off of it, don’t know, but with Dave;s article, I am asking why I haven’t returned to it. Which I am starting today. ;o)

      • Jason

        You probably have a food intolerance to something you were consuming regularly. Or you simply were eating too much food.

        • Rocknrope

          I don’t think I was eating too much food, but I thought that calories didn’t count in the BP plan? I don’t think I’ve changed anything in terms of the types of food I was eating, aside from now eating two softboiled eggs for breakfast instead of the buttered coffee. I still put a TB of Coconut Oil and MCT oil in my coffee though.

        • six

          I still monitor my calories, being veg its hard to over eat. You need to create a deficit to lose weight, but if you are working out then you body will create the deficit and you will be fine for weight loss.

        • TMS71

          but Dave ate 5000 calories a day and lost weight. If he was in deficit he must have been burning 6000/day. How is that possible? He’s not a marathon runner or 400lb sumo wrestler.

        • UltimatePowa

          Many reasons.

          Brain can burn alot of calories.

          Staying active the whole day and trying to not sit down helps.

          Some people just develop high metabolisms. (Maybe other people’s just isn’t turned on yet?)

          I had a friend back in high school that would eat 10000+ calories a day.
          One year I had him 3 out of my 6 periods and every period he would pull a full meal out of his backpack and start eating.
          Didn’t matter if he was active or not.

        • victor

          Very simple, in a ketogenic state you burn fat instead of carbs. When 80 percent of your diet is from fat and you burn it it’s just about impossible to gain weight.

        • KSV

          You don’t absorb all that you eat. Fats especially. And it has more to do with hormones and gut bacteria than input/output.

    • MT_Dreams

      I have to disagree. Dave puts everything out for us to make use of. Yes many of the more unique things Dave does or has tried are expensive, but one should separate this from his diet posts & insights. Just b/c I will never purchase a $5500 nuerofeedback machine he spent a whole post on, does not mean I don’t try to make use of his dietary findings. I have actually saved money by going in the bulletproof(paleo) direction. I have found local sources of raw dairy, eggs, grass fed meat and produce. I eat much less food now, and feel better, and I’m nowhere near a millionaire. Although high end grass fed meat is expensive, you can get bulk ground meat, and organ meats for a relatively decent price. It’s weird that we accept someone spending $4/5 on a high end coffee at starbucks as normal, but spending a couple extra dollars on meat that is properly grown is akin to being a luxury. Besides eating a 16oz steak is overkill. Stop over eating, and the price you pay for food will lower. If you have fat on your body, it usually means you’ve taken in more food than what was required for living. Talk about expensive insulation.

      All nutritional theories have holes if you are looking for them. it’s not about trying to prove them right or wrong, but taking in the info and seeing how it relates to oneself.

      • Tom

        didn’t work for oneself, for over two months, as best as I could do it, and I really put much effort into it. Grassfed meat, butter, not drinking coffee, intermittent fasting, staying away from diet soda chemicals, etc. Made no discernable difference. AT ALL. Didn’t gain weight, but didn’t lose any beyond what you would from any low carb diet. …and I am over 100lbs overweight, not a candy or cake eater either. I even use stevia regularly and eat generally low carb. Not a bread or pasta eater etc… I opt for wild caught fish, steer clear of HFCS, etc…

        • MT_Dreams

          I would suggest you read up on enzymes as this may help digesting all food categories properly. Also get some blood work done, hair sample, etc to see what you are deficient in. There are so many factors involved in optimal health it’s quite overwhelming to someone who might want instant results. For one, your body goes through natural seasonal cycles, as it was traditional to gain weight during late summer/fall, lose that weight during the winter months, and detoxing during the spring to start the whole cycle all over again. Another factor is your body type, and so on. Without getting into specifics, the tried and true method to loose weight is to be in movement, when you’re sitting your body runs on a lower plane which effects may things, one of them being weight.

        • Tom

          well I have hypertension, need several BP meds, and have a high stress office job in the software business, in NYC… and I get little sleep. I’m sure my cortisol is through the roof.

          I did lose a lot of weight quickly using HCG, but the diet is brutal and guess what, when it was done I slowly regained the weight.

          I wasn’t dissing Dave Asprey, I think he’s brilliant. I just don’t think it’s as easy as just replicating his diet – and honestly he’s said as much at times.

        • MT_Dreams

          No doubt lots of stress and lack of sleep will un-do whatever benefits come from improving what you eat. Meds have done a lot for many people, but they tend to restrict ones ability to become ‘bulletproof’. Those would probably be more important areas to try and address rather than nitpick what you eat (though they do go hand in hand to some extent). Good luck.

        • Sobie

          Try reading The Magnesium Miracle by Carolyn Dean, M.D., N.D. See what you think and if it would apply to your situation.

        • Eric

          Honestly, what you just described here says that you did not do the Bulletproof Diet. In fact, it leads me to believe that you slacked in a lot of categories and didn’t really give is a fair shot. Obviously, we would need some clear facts to really know and I’m only speculating, but based on what you are saying, you didn’t really try it. Regarding your sleep schedule, I have lost 45 lbs on the BP Diet in less than 90 days and I definitely noticed a “slow down” when I wasn’t getting at least 8 hours per sleep.

        • Tom

          Look pal, I did the diet AS BEST I could. Not every stitch of meat or fat could be “grass fed”. I did however spend a lot of money on grassfed meat and butter from Trader Joes. I stayed away from coffee and black tea and chemicals. I did the freakin diet – and intermittent fasting too. I could care less if you believe me.

        • Jon Hungerford

          I agree, it is very difficult to follow a strict bulletproof diet, particularly keeping away from things like gluten and dairy that are a staple in most ordinary diets.

          But in my opinion, the real value I’ve got from Dave’s writings so far is a far better knowledge of what’s good and bad to eat. Subconsciously, that helps me avoid the things I shouldn’t be having. I’ve found that my desire for junk food has definitely decreased over the last 6 months as my awareness and knowledge grew.

          Re the grass fed meat issue, I asked my local butcher that I normally buy off for grass fed beef and lamb, and found to my surprise that he only ever sells grass-fed anyway. So you may be better off trying a small local butcher than the big chain stores (this is in Australia, anyway).

        • Eric

          Don’t call me “pal” buddy!

          I meant no offense. I’m simply stating that you were not being Bulletproof, so it’s not fair to say, “Bulletproof didn’t work for me.” That’s all I meant.

          For what it’s worth, I don’t follow it 100% either, but there are certain things you just can’t slack on. You’re right about grass fed meat being expensive, but there are hacks you can do to lessen that. For instance, buy cheaper cuts vs. rib eye. Or, if you can’t justify the cost, buy the leanest cuts of grain fed as possible.

          Best of luck!

        • Philip J. Mauch

          Listen, chief …

        • lippyone


          If you truly tried the BP diet for 2+ Months and didn’t lose weight you either didn’t stay in ketosis (i.e. carbs found their way into your engine), have hormonal issues, or their is some underlying gut issue. But if you went from a standard western diet to a paleo+dairy fat diet and didn’t see an immediate loss in body weight something isn’t quite right.

          The grass fed beef is more for health reasons than weight loss but you can find it more and more. But you sound like you are in a tough situation with stress, sleep, and financially. I would suggest starting over with a focus on eating real food, eliminating carbs for a couple of weeks (no tubers, rice, grains, added sugar of any kind), get into ketosis, make sure to eat loads of healthy fats (avocado, coconut oil, kerry gold), avoid other dairy, eat plenty of fresh vegetables. Take it seriously and you’ll lose weight. And don’t cop out to say you can’t afford it. You’ll save money in the long run.


        • DanJR

          Hey Tom, I am definitely not an expert on this and I have never heard of Bulletproof before and am not about to suggest it works…. just going to tell my uncle’s story and how he lost 90 lbs at 60 years of age.

          He is an avid smoker and avid drinker of coffee and has never given up either of those habits…. all he did to lose the weight and keep it off was cut out all carbs and strictly eat meat and vegetables.

          He would eat steak, fish, chicken, etc and then eat only vegetables. He didn’t stop smoking his 2 packs of cigs and 6 cups of coffee a day either. He still does both of those and has done them for the last 40 years of his life. He is now almost 70 and still weighs the same when he started the diet and it only took him 1 year to lose the 90 lbs.

          Hope it helps.

        • Terri

          DanJR…I have lost weight too and kept it off…watch the wheat…I don’t eat breakfast but do have coffee or tea in the morning….I do have an occasional sweet snack…I eat small quantities for lunch..(eggs, oats, kamut, quinoa)..and have a normal dinner….I recommend…use limited organic sugar…and NO artificial sugars…plenty of well or distilled water…no msg(look for other names it goes under) I have an occasional drink on the weekend…I used to run but I don’t ever do that anymore…as it is a waste of time…do something productive and that you love to do….I do work outside in my garden and do get plenty of sunshine..I do stretch and use my own weight for exercises 3x a week…..I am 58 and my body looks like a teenager…

        • Terri

          Oh…don’t forget a couple of swigs a day of apple cider vinegar….and a tblspoon. of olive oil or coconut oil ….work great on your body too:)

        • Lorna

          Just chiming in here. I also understand about very stubborn weight issues. I followed a program called “metabolic balance”, doctor followed, 1000$ due to blood tests etc, that for everyone else they shed weight super fast, for me it took 2 yrs to shed what others did in 1 month. It turned out to be very helpful as I did eventually go down and brought me away from the brink of diabetes. The no weight loss issue was insulin resistance and metabolic disorder. I am also now trying to fix candida overgrowth that I found I have and this also explains the stubborn weight issues. I found also several cronic infections, inflammations I have had for years that I didn’t know were microbial in nature. The amazing speed I am now experiencing to lose weight is using oxygen therapie. Oxygen fixes candida quickly, kills the cronic inflammation (in my case due to mycoplasma infection) I am now ready to reflora and ran across this article. So yes we can have different reactions than other people. I have not read the bullet proof diet yet but the “met Bal” diet and the doctor i now see in France want me to steer clear of gluten, dairy sugar and ferments as they feed the micro organisms at the base of my issues. I also have been able to stop all meds except my thyroid. Good luck, stay on with this but add oxygen (ozone or hydrogen peroxide, cures also heart disease)

        • Kevin

          How did you follow the diet by avoiding coffee?? Intermittent fasting and the BP diet STARTS with BP coffee every day!
          As for weight loss, look at the BP lifestyle as not just a weight loss program. Take bits and pieces and think of trying to eliminate inflammation. My mother passed away from Multiple Sclerosis and my father has high blood pressure, cholesterol, and diabetes. So I try to use the BP lifestyle to eliminate inflammation.

        • anNicole C

          of course you lost weight on that diet. You can’t eat anything that is found locally or conveniently. So your choice is to abstain from eating when permissible food is not available. You reduce calories through restricted diet, you will lose weight.

        • LG

          bulletproof diet.

          You’re doing it wrong.

        • Jude

          Tom -regulate your sleep, try meditation, and you might also gain other insight by listening to Rebooted Body podcasts, or Dave’s podcasts. Sorry Tom, but you sound frustrated…personally I don’t think there is a quick fix. I put this 100 lbs on over the last 20 years and I will accept a slow but steady loss with renewed health…fast weight loss isn’t a great goal…focus on renewed health in many aspects of your life. Wishing you the best.

        • Deb

          Look at The Plan. It’s an interesting way at looking at your food Intake. It’s not a diet, but a planned way of discovering what foods work for you and those foods detrimental to your overall health by causing inflammation which can be attributed to a food reaction resulting in weight gain. Many many followers are learning just what foods are safe to eat, what foods are reactive, and are losing weight, and feeli g generally better all over!

        • lstoutner@gmail.com

          Agreed Tom! I thought the BP diet was going to be the answer. My significant other and I have been on this for 2 months and not lost a lb. Atkins is the only way to go. Now I have to psych us up on Atkins. We are body builders and it didn’t make any difference there either.

        • Adin 99

          if you are 100 pounds over weight and think its a diet’s fault you might have missed something or miscalculated your macros/calorie maintenance. Shoot for a 500kcal deficit in overall daily calories and you WILL lose weight. Its really just basic math and motivation.

        • sjking2000

          I think you may be right – that there are many factors at play. For me a lo carb diet has both reduced fat and been livable for 15m. This article suggests that in some the brain may play a significant role in countering that success http://www.dailymail.co.uk/health/article-2134162/Research-shows-trying-lose-weight-alters-brain-hormones-youre-doomed-pile-again.html

        • Danielle

          Try eliminating all fragrance chemicals (if you haven’t already). Many are obesogenic, the estrogen-mimicking ones thru that mechanism.

        • Danielle

          PS after posting the above, saw another poster’s coment about foods being INFLAMMATORY, causing weight gain thru that mechanism. Fragrance (and other) chemicals can contribute to weight gain AND, I believe, blood pressure problems, thru that same mechanism, in a body whose detox mechanisms are degraded. As this modern day world is a never ending source, for most of us, of chemicals (including prescription) our bodies have to detoxify thus using (up) our detox resources, it is not surprising that many of us already have overloads in our bloodstream of chemicals our body hasn’t been able to detox (inflaming those tissues), to where adding in MORE chemicals by applying fragrance chemicals to our skin that we add into our bloodstream all day while breathing them in, just adds more inflammation our bodies have to deal with.

        • shumee

          It’s hard to stick to a strict diet so I don’t. I just avoid the really bad culprits like regular wheat, but I eat einkorn wheat (more work because you have to make things yourself but worth it and you don’t feel like you’re totally deprived). Look up Jovial , a brand that sells einkorn. Also don’t get any meats from Trader Joe’s and don’t buy their line that they are GMO free (not true!). I got a lot healthier after avoiding a lot of things I used to eat from Trader Joes like their cheese and veggie chips !Ade from corn. I only buy wild fish, occasionally nuts and organic bananas from there now. Kerrygold butter us OK but I getAmish butter which tastes better. There is high quality butter from Iceland and another country (forgot) like Smjor. There’s a lot of play on words like ‘grassfed’ that doesn’t necessarily mean they’re eating non GMO grass the whole time (now alfalfa is GMO), so do some research into where the meats come from. Worth it. Try to join a food co-op or look on local harvest.org for some good sources.

      • Eric

        My friend what you said is absolutely correct and love the way you articulated it. It’s all about using the information provided to your benefit. In this case and on this topic, no right or wrong. Only what works for you and what doesn’t. But the information provided in this article is extremely helpful and has opened my eyes to what may in fact be the issue for me. I Generally live a healthy lifestyle and this gave me the information I needed to make some minor adjustments which I believe will lead to major improvements.

    • Hindredd Biggs

      says the pro-biotic yogurt mogul

      • Tom

        I’m a mogul now? Not.

    • Jason

      Not true at all. You just are shopping in the wrong places. Farmer’s markets are great places to find local produce and meats at affordable prices.

      • Rocknrope

        Not in NYC. Farmer’s markets here are typically just as expensive as supermarkets, if not more. This may not be true in other parts of the country. I heard that you could get 5 lbs of organic blueberries for $16 in Chicago, which is unbelievable.

    • Jason

      Dave talks about how some people have a high resistance to histamine, and others don’t. If you look at ALL Russians, not every single one of them will be able to consume kefir and kombucha without symptoms. Also, Dave mentions that you can produce good kombucha, but it’s hard to control what bacterial strains are present in it. Some people have mastered this craft, so you are taking a gamble when you do it. Dave has said, time and time again. TRY IT, if it works for you, keep doing it !

    • Xenek Stoehr

      Partially agree Tom. Diet is complex. What works for one person works differently for another person, in part, because of the differences in gut bacteria. Then you have changes due to genetics and also – epigenetics, an amazing field I only recently became aware of – this is like being able to hack your own DNA by making changes in what you eat, drink, and do. There weren’t any numbers on bacteria mentioned – a book I read called ‘brain food’ suggested a minimum of 300 different bacteria all in different ratios, with as many as 1000. So a formula with a few, even 30 bacteria is really only slightly altering the ratios of small amounts of bacteria. Gut bacterial transplants are new, but for a meat eater trying to become a vegetarian, maybe they need a regular gut bacteria transplant from a healthy vegetarian. Or the opposite. One question overlooked – how fast does your digestive system work? Is it 6 hours from one end to another, or 48? My guess is fast is bad. Slow is good. Better absorption, more time for bacteria to act? Or more time for bad bacteria to replicate?

      Also, grass fed might be a critical luxury necessary to embrace. Study work by Allan Savory about understocking & the lack of animals leading to desertification in grasslands. He has a simple video on TED. That is a new perspective worth integrating when you are browsing the isles in a supermarket or at the butcher.

      Finally, coffee and tea seems to be implicated in nutrient elimination, if not stimulating premature defecation in at least some people. Examine.com lists 500+ papers suggesting caffeine has benefits, without much if any focus on problems. Without reading all 500 papers, I question them. Does caffeine lead to an increase in magnesium elimination? If so, maybe it should be used as carefully as cocaine or amphetamines – not at all, or under close supervision, if 50 % or more people have deficient intakes of the many crucial different types and forms of magnesium. Does the stimulatory effect reduce a person’s capacity for slow and patient consideration and study, while increased wakefulness reduces turning short term memories into long term memories because people skip the siesta or lunch nap where eyes are closed, helping eliminate brain waste? Does caffeine cause vasoconstriction in the brain? If so, it might put people on a railway track of repetitive thinking due to reduced blood flow and nutrient delivery. If caffeine causes vasoconstriction in brain tissues, is it short lived – a shock that is rapidly compensated for, or does it last till nearly all caffeine is eliminated? How does this relate to hemodynamics, or hydrostatic hypotension, when you stand and walk after having a coffee – does this restrict so much blood flow that you turn into an idiotic stubborn robot of habit, able to only parrot heavily remembered things, incapable of remembering or even considering recent memories not so heavily used, formed in brain tissues that have only limited blood flow and smaller capillaries? IMO there are many issues with Dave’s work but he is passionate, he believes in things.

      I suggest you don’t read things as facts, read them as beliefs, even when they are stated as factual and have a body of evidence. 500+ detailed scientific studies can easily be mistaken, as can billions of people. Tom’s perspective is in some ways counter to Dave’s perspective, so it is perfectly right that it should be voted to the top.

    • Caleb

      Grass-fed meats only for rich dot com millionaires? Buy organ meats and tongue (the cheapest of the muscle cuts) – the former are loaded with nutrients (reducing required vegetable consumption) and all are cheap. Stick with organic, grain-fed butter if you need to save money – COSTCO should have it at reasonable prices.

      As someone wisely mentioned below, also look into digestive enzymes and focus on gut flora for better health on BP diet.

      • Caleb

        According to Dave, mycotoxins from moldy feed are rarely found in butterfat, hence organic grain-fed should be safe from them (organic recommended against antibiotics & artificial hormones). Doesn’t apply to animal fat though.

      • Tom

        well I take CULTURELLE at the request of a gastro doctor- so there’s the gut flora. I can afford grassfed Kerry Gold from Trader joes and I usually get their ground meat but I can’t eat exclusively grassfed meat. I have a wife and she’s not onboard, but like I said, for the over two months ai was pretty darn strict with fasting too and the results were underwhelming to say the least.

        • Michael Reed

          I see you are married. Get a divorce. That’s an instant 150-200lb loss (because people let themselves go after marriage, It’s a fact) and huge drops in stress and cortisol can be achieved. Not to mention you control everything that goes into your body without a wife around to screw it up because she’s “not on board”. Simplify your life. I bet after those changes you would be a completely different man and could actually be healthy. Start dating younger women. I think your marriage is killing you. It certainly costs you way more financially. Maybe if you drop the wife you could finally afford to love yourself first. Just a thought.

        • LG

          hahahaha best comment on here.

        • LG

          Narcissistic Psycho. You contribute nothing to the world. You are cruel to animals. You feign emotions. You use people and then throw them out. Because you have no empathy you use people to try and feel important. You only have groupies who are other psychos or you are lying to about who you really are.

    • six

      Nah you can eat a lot, I’m Vegetarian, and I get by just fine on the Bullet Proof diet. Meat is the most expensive part, you don’t have to use his oil. You can use good Coconut Oil instead. Bullet Proof Tea is awesome. Guyaki Yerba Mate, Coconut Oil ,and Organic Range Fed Sweet Butter works like a charm. Organic Veggies depending on your region are far cheaper then meat.

      After about a month my energy levels are way up, my brain is less foggy, and my work outs are great thanks to the Bullet Proof diet. I have lost a good amount of weight and hope to lose more diet + exercise + good rest = win there is no substitute and no magic pills for weight loss.

      • Stacey Kinal

        ‘Now’ sells a good MCT oil that is much less expensive. FYI

    • cbstryker

      “What about Russians who have been consuming kefir & kombucha and Bulgarians with their yogurt and 100+ year life spans?”

      You’re completely missing the message here. No one is saying that kefir and kombucha (or any of the other stuff) is inherently bad, but when you are already in an unhealthy state then these things will be bad FOR YOU. The author of the post is talking about how an unbalanced/unhealthy gut microbiome will cause problems like having a very high histamine count and eating histamine triggering foods will exacerbate the issue.

      If a person is 100% healthy then eating things like cake, candy, junk food, soda, alcohol will not be bad for them (moderate consumption of course).

    • alitrx

      Yes you may die.

  • Neutney

    I wish we could try beyond organic here in Canada! I hate all the post about amazing things for USA only! I know it cannot be helped but it really sucks for us here!

    • Hindredd Biggs

      maybe we can research a Canadian alternative which is close to it, any thoughts?

    • MT_Dreams

      I’ve been making my own kefir & yogurt from raw dairy in ontario from a cow share. After reading this, I’m going to experiment with some specific strains to see if I notice a difference. But yeah, whenever I’m in the US, it’s like the feeling I had going into a toy r us as a kid… So many options, not enough time to get it all in.

  • I just finished reading MIchael Pollen’s book “Cooked” which left me completely convinced of the importance of fermented foods and now I read this. I, like Tom, am puzzled that “longevity zones” always include lots of fermented foods, the ones on this post’s “hit list”.

    • James

      Fermented foods are important. However since we cannot get reliable prebiotics and probiotics his recommendation is pick your source properly

  • Justin

    Does this mean that you are now part of the Beyond Organics MLM? How many people do you need to sign up?

  • ChristineLm

    Four months ago I started to ferment kefir, kombucha, sauerkraut and beet kvass. Now I am reading this. I can’t win, can I? Over the years I’ve gone raw for 4 years; spent $15,000 in 6 months on supplements; lived on grass-fed bison; lived on only raw fruits and vegetables for 1 year curing endometriosis. I have gone from one extreme to the other. Nothing is helping my joint pains. One month ago I found you and ordered your coffee, cocoa butter and chocolate. I’ve already been eating grass-fed, only need a few tweaks. I am willing to try your bullet proof approach for the next 2 months. Christine

    • PC

      Hi Christine, this is an old post, but just wanted to say you might try cutting out the cocoa butter and chocolate, and maybe even the coffee and see if it improves your joint pains. I was addicted to cacao but I have cut it out for a while and feel much better! How are you doing now?

  • ChristineLm

    Four months ago I started to ferment kefir, kombucha, sauerkraut and
    beet kvass. Now I am reading this. I can’t win, can I? Over the years
    I’ve gone raw for 4 years; spent $15,000 in 6 months on supplements;
    lived on grass-fed bison; lived on only raw fruits and vegetables for 1
    year curing endometriosis. I have gone from one extreme to the other.
    Nothing is helping my joint pains. One month ago I found you and
    ordered your coffee, cocoa butter and chocolate. I’ve already been
    eating grass-fed, only need a few tweaks. I am willing to try your
    bullet proof approach for the next 2 months.

  • James

    Could you clarify the recommendation of avocado because it is high in histamine.

  • JP

    You mentioned a balance of the bacteria in the products. With the popular product Activia having one of the histamine producing bacteria(Lactobacillus Bulgaricus) and one of the histamine degrading bacteria(Bifidobacteria Lactis), does this make it balanced and therefore a proper product? It also has Streptococcus Thermophilus(not sure which category in which that falls).
    I also found an exceptionally cheap probiotic drink at walmart called Bio Salud that contains lactobacillus bulgaricus, streptococcus thermophilus, lactobacillus acidophilus, loctobacillus casei and bifidus yogurt cultures. Thoughts?

    • Lara

      Regardless of the strains of bacteria in something like Activa, I’d be more concerned about the genetically modified ingredients that the probiotics might have been grown on. There’s been evidence shown that gene transference occurs and that the gut bacteria themselves will start producing the bt toxin – which is meant to destroy the guts of insects eating the plants engineered to produce the toxin. I always check if the probiotics I’m taking are cultured on a non-genetically modified substrate. If the company doesn’t know, or care, then stay away.

  • Ben

    FYI, just found these probiotics which have 2 of the histamine degrading strains (Bifidobacterium longum, Lactobacillus plantarum) and none of the histamine producing strains. They come in 30bn and 100bn versions for $35 and $63, respectively:
    Xymogen ProbioMax DF – 100 Billion CFU Probiotic – 30 vcaps
    XYMOGEN ProbioMax Daily DF 30 billion CFU probiotic 30 vege caps

    • Hindredd Biggs

      thank you for looking that up and posting it. I put it in my bookmark folder, I might order it

    • MT_Dreams

      You saved me from an exhaustive search for a product just like this. thanks a million.

    • Joyce

      Hey Ben, thanks! It was depressing to see the cost of the Amasi on the Beyond Organic Website–$30 for 16 oz, unless I misread the ounces. I couldn’t see the # of ounces clearly on the bottles on the website. I am also unclear as to what is the “daily dose.” The Xymogen price is pretty decent for a good probiotic!

      • mike

        6 pack. thats 6 16 ounce bottles…

        • joyce

          Thanks 🙂

      • Ben

        no problem joyce!

      • Jillzy

        I just ordered it without joining the MLM (so paying full price) and I got the starter pack that was 6 bottles of 16 ounces each for something like $37 plus shipping. Given that it came in a big foam-lined box with dry ice and 2-day shipped, the shipping was quite reasonable at $9!! (plus $5 handling)

    • Jonesy

      Thanks mate, I think I will give these a try!

      • Ben

        no problem!

    • Suzanne

      This brand has only one of the histamine of producing strains. Just another option. http://www.perque.com/products-page/digestion/perque-digesta-guard-forte-10/

    • Jess

      I’ve taken these probiotics too, but they have Acidophilus in them which is d-lactate forming. Do you know of any brands that don’t have acidophilus, but has the others?

    • Jillzy

      Thanks for this research…has anyone tried these? Reviews on Amazon look good…

  • JoyousOne

    Is eating a Greek yogurt ok — Dannon’s Oikos Traditional to be exact say every other day? I’ve also been taking an over-the-counter probiotic capsule at dinner time. Is it safe to say then to stop this regimen for my digestive & acid reflux/nighttime heartburn problems? My doctor prescribed Omeprazole that I take every other day. I’d really like to come off any medication I can and don’t need if I eat the right foods. These all have seemed to help me though but just eating more Paleo should be better for me? I’ve talked to my doctor about the Paleo life style of eating but she’s not familiar w/it but said most of the foods listed on the program seem nutritional and healthy enough – just wasn’t too sure of the concept of Low Carb/High Fat diet — the high fat part even though I told her it was the good fats. I have changed my eating habits somewhat and found my high cholesterol has come down w/o the use of statins (which she was happy about) as did my A1C and blood pressure levels so … we think there’s really something to your plan. Also — I was diagnosed as diabetic w/a reading of 7.4 and after starting your program, got it down to 6.3 in 3 mos..no longer considered in diabetic range. Love the Bulletproof coffee too. Thanks for this change in my life @66 years young you have discovered w/your program and that my son @33 got me involved with — it’s done wonders for his life and health. I’ve a ways to go to be fully into it, but I’m headed in the right direction now.

    • MT_Dreams

      probiotic capsules are best taken on an empty stomach at least 15 min before eating. you dont want them digestion in your stomach, rather that they make it to the intestines as quick as possible as this is where your gut bacteria lives.

    • barbie

      Now, I have no idea. I was going to get raw goat milk and make my own kefir…but what if it kills me by making me fat and foggy? oh god no not fat AND foggy

    • Big Mike

      Experiment, then you tell us the answer. Clearly you’ve got the smarts to do that, JouyousOne.
      Please never take advice prescriptively. We need to realise that the only authority on what is healthy for your body is your actual body: listen to it.

  • Bulletproof gal

    I have been trying Amasai for a month, half a bottle once a day after 2pm. (I was excited because i cant do any other dairy, and Dave has rarely steered me wrong. I am a bulletproof believer!). Since adding Amasai Gained 4 pounds (even though ive been superclean BP otherwise). swollen tongue, feel crappy afterward & Food Sense app says I’m sensitive to it. Bummer. I was hoping to heal my gut, but I guess is isn’t the way to do it.. : (

  • Rick Yarussi

    This is a great post. Many people assume that all fermented foods are good. And you’ve handled the MLM issue perfectly. Anyone who is still complaining about it at this point just isn’t reasonable.

  • Annie_MotherOfInvention

    People the smartest thing we can all do is listen to our own bodies. This is the most important thing about interrupting what is the right food to eat. Ask your own body and it will tell you if you listen. Muscle testing food and supplements is a helpful way to start to get to know what your body likes. Not all bodies are the same and react to food in the same way.

    • Alex Leyva

      I absolutely agree with you, everybody is different. Do you self-test or do you have a partner to test with?

  • vitamin

    Dave you are great, but please stop with these sketchy business partnerships. First the olive oil email that makes you sign up for monthly payment, now MLM?
    “All probiotics are bad, except this one [which is dairy aka not bulletproof] which I am a business partner, and it tastes great too!”

    • kittendelight

      hahah tell me about it! I hate titles like this, it’s just pure journalism at work if you are using a misleading title to hook people in. If a person really cares about spreading information they can do it with a catchy headline that isn’t as poor as this one.

    • Clark

      It’s high quality stuff, isn’t it? It seems like Dave only sells stuff he would eat himself. As for Amasi being bulletproof, I don’t see it as a contradiction. He is against pasteurized homogenized milk. He says raw milk is just fine, but you can’t normally find that. This is raw, cultured, grass-fed milk, and is similar to Kerrygold in that way. Also, try not to be too jealous of Dave’s business partnerships, you’ll just hate yourself in the long run, lol.

    • geez, i love so much of what i’m getting from bulletproof and am grateful but sentences like this sound a little hardcore, defensive, and self-righteous: “If you don’t like it that I’ve made this decision, I invite you either
      accept it or unsubscribe.” Geez, can’t I stick around with a mindset of: “Believe nothing-entertain possibilities”? (i’m gonna). In addition, my body and life path are far different from David’s (never been overweight in my life/trying to quit tobacco, etc)… guess I gotta biohack myself on this one!

    • NYC Farm Lover

      Of course Round-Up is not a shady business at all..

    • brian prince

      I laughed out loud when you felt a need to hate on mlm. lol.

    • alitrx

      seems like you are not gonna get anymore vitamin from your yogurt…haan Dave.

    • New Greg

      Can’t you see he isn’t great, your cognitive dissonance won’t allow you to see that he is terrible.

    • Guest

      It’s a business for Dave, nothing else. That’s how he makes his living. Anyone who thinks differently is deluding themselves…

  • Doc Rob

    There are certain strains of bacteria normally found in the human body. These strains are beneficial and highly recommended.
    I do not advocate FOS (the prebiotic mentioned above) as it is like feeding yourself cardboard vs a piece of fruit. Highly a marketed item by probiotic manufacturers in an effort to replace natural culture medium which is spun off by centrifuge in order to save money in freeze drying costs.
    Additionally, very often the fog and bloating is “die off” reaction as good beneficial bacteria work to beat down the pathogenic bacteria, yeasts, etc.

    Jordan Rubin is very good at copying other products (whether they be traditional or contemporary) in an effort to make available health solutions. Although I also don’t support MLM model, he usually keeps a very high standard of quality. (I’ve personally worked for him in the past)

    I suggest you interview Donna Gates, founder of Body Ecology and one of the foremost experts in gut health and microflora.

  • Rick Yarussi

    This is a bit off topic, but several people have complained about the cost a Bulletproof Diet. Go buy half (or quarter or eighth) a cow from Alderspring. Around $7 per pound and you get half steaks and half ground beef. You can’t even buy factory “farmed” conventional meat from a cheap grocery store for that price. Spend $200 (less for used one) on a chest freezer to keep it in. Or you can pretty much fit an eighth in the usual fridge freezer. Or split one with a friend. So stop complaining. Put a little effort into it, and there are ways to get the cost down.

    • Big Mike

      Thanks for that very practical advice Rick. Grass fed meat is the only meat fit for human consumption. Science and http://www.meat.org will reveal why.

      • Spencer

        You’re a dick. Thanks for the reminder though.

        • Big Mike

          You’re welcome.

  • Jason

    Bunch of cry babies on this comment community. Grass fed beef and lamb are not that expensive if you freeze it and vacuum seal it. I spend around $5/lb or less for it locally. And if you are still finding issues, you probably have a food intolerance, that would be easy to identify with a blood test. I found that I was very intolerant to eggs and garlic. Cut them out and symptoms went away. Do your own due dilligence you bunch of whiney b*tches!

    • Rick Yarussi

      Jason I don’t know you but you rock.

    • Hindredd Biggs

      Something strange is going on with these whiners. That whining post got suddenly 21 thumbs up votes to drive it to the top of the comments section. Delete it. Someone is likely playing with the site and boosting their own posts popularity , somehow.

    • Big Mike

      J, I love your point but dislike how it’s almost undone by the delivery. To put it another way:
      Don’t take any food or health advice prescriptively, because your physiology is unique. Learn from people like Dave. Experiment and become one of those people yourself. Find a way to make it happen. Only then can you enjoy optimal health. You cannot have it for free (or in a drug as someone posted earlier). Get rid of your “quick fix” expectations and you’ll go further than you ever imagined.

  • Laura

    How about an Android app?? 🙂

  • Michelle

    Thank you for the information and all the research you do. However, on the MLM part…my husband and I have been in that industry for over 30 years and to say you “despise” it…may be a little over the top. Especially when you cannot possibly have researched every person, company and product in the industry. As with ANY industry, there will always be people of low integrity who chose to take advantage of people… just a thought…with all due respect… I would simply watch throwing out the baby with the bathwater on that. Again, thank you for being a person of honesty, integrity and honor… I am also. 🙂

  • Carson

    What does this mean for Green Vibrance?

  • Hindredd Biggs

    how in hell did Tom’s negative comment get 17 thumbs up to be the first comment everyone reads? Some one is up to something.

  • BillBixsby

    I’m a little confused still. Below is the list of probiotics I get everyday in my green drink. None of them seem to be histamine producing, all either reducing or neutral. Does that mean its good for me? Or at least not at all bad? Thanks!

    • MT_Dreams

      well it means that you’re not taking strains that might increase histamine. So if this article is correct regarding your body, then yes. Most of the histamine stains are milk created which is why your dairy free source does not include them.

  • David

    I’d love to hear asprey’s opinion on kombucha, specifically gt Dave’s. I drink a lot of it and have never had problems with it

    • meds

      I’m certainly not Dave, but I have noticed that GT’s has 2 versions. 1 is the brown bottle for those over 21, slightly higher fermentation and a DIFFERENT strain combination. The Classic (brown bottle) has lactobacillus Bacterium and S. Boulardii. The clear bottles have Bacillus coagulans GBI 30 6086 and S. Boulardii. In my unprofessional opinion, the classic is the original and intended probiotic strains, whereas the clear bottle ones were changed to make it sellable to under 21.

  • Maverick

    What about Lactobacillus acidophilus and Bifidobacterium bifidum do they product or degrade histamine?

  • meds

    It seems like there is always a product to be pushed in these blog posts. We get it…”bulletproof this…upgraded that….avoid these bad things and buy my stuff.” What did the world ever do before bulletproof came along??
    Your business strategy is brilliant, I will give you that Dave. Create hype around a particular issue then present a profitable solution.

    I’ve tried Amasai (plain, watch out for the high sugar flavors), and honestly don’t notice a difference at all over my raw milk (A1/A2 hybrid dutchbelted) other than the price per oz. Not many people can justify over 4 bucks a serving (after shipping) for some yogurt. I found a hack/cheat with the Amasai to stretch it if you get raw milk already, pour 1/4 a bottle into the gallon and shake up. The culture multiplies into a thinker milk/kefir and goes a lot further while getting the culture benefits. Just my 2 cents.

    • joyce

      Does the culture multiply even if you refrigerate the milk? We get raw milk and this sounds like a great idea!

      • meds

        Yes, it certainly does. I never take it out of the refrigerator to keep the shelf life longest before it starts to sour. This seems to prevent the souring flavor while thickening the consistency. It changes to flavor to a milder tasting plain Amasai. Shake a few times a day to get even culture distribution as whole milk naturally separates.

        I’ll continue to experiment with it for another go around, but honestly I don’t notice a difference in health benefits in my body externally or how my body reacts one way or the other.

        • Joyce

          Thanks, meds–I make Russian Kefir which ferments at room temp with my milk that is just ready to sour if we haven’t had a chance to drink it or get an extra gallon that week. I know that raw milk has natural probiotics in it, but it never occurred to me to add probiotics to it when it is in the refrigerator. What a great information!
          Interesting that you haven’t noticed any health benefits… I think this could be great for my kids, and me, too, of course 😀

      • MT_Dreams

        bacteria grow even when refrigerated, though it’s miniscule when compared to room temp/warmed dairy. If you leave raw milk at room temp, it will become clabbered (sour) milk whereby the milk cultures itself. You can also add culture (kefir grains, or selective strains depending if you want Bulgarian, Greek, etc kind of yogurt). I believe buttermilk cultures and kefir granules are done at room temp, while other select strain may require a temp of around 100f. both take anywhere from 8-48 hours to fully culture depending on temp,source of cultures, etc. if you dont have access to strains, you can just buy some yogurt at the store and culture your own using the raw milk. within a couple of ferments you will all but got rid of the pasteurized milk from the original yogurt source.

    • S.

      awesome hack

  • Larry

    Thank you Dave for all of the work and research that you’ve done. I have some questions though. Which of the references specifically point out those three strains of bacteria as histamine producing? Also, are all histamines made equal and do the negatives of some of the histamine producing bacteria outweigh the positives for someone who does not have a histamine intolerance?

    In doing some quick research of the three histamine producing strains, I have found that:

    L. reuteri can inhibit a pro-inflammatory substance in the body (source: http://www.bcm.edu/pathimmuno/versalovic/tm-projects)

    L. bulgaricus can reduce cytotoxicity (source: http://www.gutpathogens.com/content/1/1/8)

    L. casei can reduce biogenic amine (including histamine) accumulation in an experimental model (source: http://www.ncbi.nlm.nih.gov/pubmed/22721727)

    How much histamine will create an intolerant effect? Does having equal amounts of the histamine degrading and histamine producing bacteria cancel out histamine production and leave you with all of the other benefits that come with probiotics? Any insight on these questions would be fantastic.

    I think a more appropriate might be: “Why Yogurt and Probiotics CAN Make You Fat and Foggy”.

  • alex

    how do you explain me? Male who eats whatever he wants; pizza, gluten products, pop, icecream, whenever I want and never react in any way? I eat pizza daily. I am a male model for Ford NYC, have one of the flattest stomachs you’ll see, incredible definition, flexibility, flawless skin and hair, and perfect digestion. I do rigorous martial arts, have about 7% body fat, and live a happy successful life. I attribute it to my drive for life, my fulfilled life, and my living a life of intention passion and dreams. Not only am I living in the moment but I wake up everyday living my dream as a model in New York, which may sound super ficial to you but it has been my dream. So is it safe to say maybe the real cause of these diseases and gut problems are due to people not living the lives they dreamed of? And it has nothing to do with the food? That poor digestion and reacting to these foods merely becomes a symptom to an undernourished soul and life experience?

    • Joyce

      I’d call you very lucky!-and maybe pretty young? BTW, there is nothing superficial about being a model; it’s whats inside that counts. Also, in terms of Ayurveda, if one has an undernourished soul with the lack of a daily spiritual practice, then true health cannot be achieved. Undernourishment of the soul is at crisis proportions in modern American life, which can indeed cause disease and chronic stress does destroy gut bacteria and lower the levels of digestive enzymes in the stomach and small intestine.. However, what you can eat when you are 20 and have no health problems from can be quite different from how your body will react to the same food when you are 50…

    • MT_Dreams

      You’re on to something, but truthfully it’s all connected. If you obsess about weight loss, the stress that creates will burden your digestive tract, causing even more of a digestion slow down. Being in the moment and living with passion are more valuable than obsession with food intake with regards to happiness. Problem is, food choices tend to catch up with individuals over time. Correcting or ‘bulletproofing’ ones diet is not about having a flat-abed stomach, or losing weight, rather about taking steps now to optimize ones chances for health in the future when one is older and their body is less equipped to overcome illness. Aside from your success in other areas in your life, you are probably able to eat like you do b/c you have a great functioning digestive tract. which came first the cart (your outlook/life goals) or the horse (digestive tract) is a question that has been asked for many years. Keep in mind many people reading sites to loose weight probably dont do martial arts let alone it being rigorous, or have the kind of body fat that you do which allows you to eat pretty much whatever you want. although i’m not one for the vanity aspects of modeling, your non food related advice is good none the less. to each his own, enjoying the modeling while you’re still young 🙂

    • LG


      the most retarded comment on this thread.

      Yeah man, it’s the dreams, not genetics or digestive issues. Go you. Lucky you are a model because I think you’re brain is more than foggy.

      • LG


        …i hate that.

  • Rick

    I think he’s wrong.. there’s no such thing as crappy bacon. Everything else sounds legit.

    • Archie

      Come to China, the only bacon they sell is crappy bacon. What I’d give for real bacon 🙁

  • Joseph

    I’M HERE TO TELL, not to sell. But I do sell. So many health prob. are rooted in swelling. I take a glutathione accelerator from Max (max.com). Glutathione is a key antioxidant produced by your body. Max stimulates the production of glutathione. Results: Reduced cellular swelling, cellular detox, stimulates production of ATP – cellular energy (literally energy on demand). Ea day I take an aspirin, D-3 fortified fish oil, a little cinammon and Max. And I try to eat decently. Results using Max vary, but mine have been significantly reduced chronic pain, better sleep, significantly reduced allergic reaction, I just feel better, and more. It is the dreaded MLM. I don’t try to sell it anymore because I hate the model. But I love the product. I’ll ans. questions here. But if you want to try the product (I don’t care if you do or not) my email is maxedlife@gmail.com.

  • Anthony

    Personally for me going bulletproof has worked. And I’ve been overweight my whole life. 20 pounds in two months. Eating the bulletproof diet can actually save you money if you do it smart. I can afford and i’m just a factory worker not a dot com millionaire.

  • vvic

    I subscribe to several “Health” Email lists (Mike Geary, Shaun Hadsall, etc.). Everyone agrees on the grass fed meats. But all the other guys say sauerkraut is like one of the best foods on the planet for your gut flora, and here Dave says it’s bad news. Well I’ve been eating the Bubbie’s – so far so good. But I’ll keep an eye on it.

  • BulletproofTinMan

    So much hate out on this post goddamn! When I first started I ate grassfed ground beef and lightly steamed broccoli with some mct drizzled on it every 3 hours. and vitamin d in the morning and magnesium at night. after 3 days of this I felt like a new human it was crazy! and still is! ive come along way since then, realized I didn’t have to eat as much but I was already used to the kind of bodybuilding schedule of eating. but this diet is awesome, and affordable. and once you feel like a greek golden god every moment of your being, you will literally forget about any other food becase its just not worth the negative effects it will bring for days. and the cravings are just none existent. Bulletproof for life!

  • Trey Dyer

    Hey Dave, I tried to order a couple of those Bulletproof Packs but it wouldn’t verify my address. I’m quite certain my address is correct. They might have a broken function over there at the Beyond Organic site. Anxious to try one when they get that worked out. –Trey

    • esposr1

      Hi Trey, I’m sorry you are having an issue with the site. Please call Beyond Organic Customer Service Directly to resolve the issue. The number is (800)560.3961.

  • femme

    I would try it, but having tried some products from the Garden of Life, Rubin’s other company, I found they were very overpriced, but poor quality. I say that because I found the digestive enzymes came out the other end intact. Needless to say, they didn’t help me digest anything. That has to be as bad as it gets. I was actually consuming lots of their products at the time, including the probiotic/organism product. I stopped buying their products altogether. The owner at the health food store felt they were not the best line either.

    • S.

      How do you know Garden of Life didn’t help you and those enzymes came out the other end intact? Thanks 🙂

  • AJ


    what about this


  • j1o2ysnu

    What do you think of this source of amasi for those of us in the UK?


    • Fruitbat

      Sadly it doesn’t look like a similar product, although we can’t really tell because it gives so little information. It does say its pasteurised and the cows in the picture are A1 type cows – Frisians or Holsteins – that are said by some to produce the inflammatory type of beta caesin (as opposed to the A2 type in Amasi).

  • Lisa S.

    Dave, will you clarify this from the article: “High phenol foods like blueberries, coffee, and chocolate can feed a type of gut bacteria called firmacutes.” I’m assuming you are saying that these firmacutes are histamine degrading bacteria, but it is not clear to me. Thanks.

    • Fruitbat

      Exactly my question too!

  • ProbioticsDaveUses

    Interesting Post! In an earlier podcast you mentioned using Primal Defense Ultra with the soil based probiotics from the same company. This product contains Lactobacillus casei among many others…Do you still take this product? Is it still recommended?

  • Jude

    I haven’t read all of the comments…but because of other health reasons (on immunosuppressants) , I have stayed away from probotics and have been focusing on prebiotics and a clean diet. Helpful, I feel less inflamed, healthier and have been losing weight slowly.

    It makes sense!

    I must say though that the Bulletproof Food Sense App has some flaws…if you don’t finish your HR on a meal, it freezes up and is non-functional. I had to reload it and use a new user name…so, I lost my data 🙁 I will get around to e-mailing or reviewing on iTunes

    I appreciate Dave’s research and personal experiences…but keep in mind folks, that sometimes you will have different experiences based on your genetic make-up and state of health. Use the info, take your own data or journal information and learn.

  • Caleb

    Good info. Dave, can you elaborate on MCT/coconut oil’s interactions with the gut biome? I understand that they are often touted for their abilities to target “bad” bacteria/fungi, but presumably they also harm “good” microbes? If so, does it suffice to avoid them around the times one consumes pre/probiotics, or should one avoid them entirely until one’s gut biome is repopulated with good microbes? Thanks.

  • ACH85

    Under #3 in this post, Dave says high phenol foods can feed firmacutes (implying that they help break down histamine.) In the Four Hour Body, Tim writes that obese people have more firmacutes and as they lose weight they have fewer firmacutes and more bacteroidetes. (He spells it firmicutes, it’s on p.111 of my Kindle copy.) Does anyone have any thoughts on how to reconcile these two claims?

    • William Anton Walters

      I don’t know about the phenol/Firmicutes claim, but the ratio of Firmicutes/Bacteroidetes being higher in individuals that are obese isn’t consistent across all human populations that have been studied.


    How should you consume the packs? Also can you recommend a pill form of the histamine degrading bacteria? Please answer!

  • Probiotics and prebiotics aren’t the cause of the problem, it’s the lack of resistant starches in the diet. If you’re eating these starches, they promote good gut flora that produce the anti-inflammatory SFCA butyrate. Consequently, you don’t suffer from fat and brain fog.

    Also, cut back on oily foods. They increase gut permeability and the susceptibility to toxins in our food and environment.

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  • Bill Schuller

    Dave – What is the protocol you recommend using Amasi to heal the gut? When should it be taken? What food should it be taken with or without? How much? How often? How long?

  • LactoMan!

    As someone that actually designs, researches and produces probiotics for a living. I must admit. A portion of what you wrote is true. But, several things that you assume true are incorrect. FOS is notorious for feeding bad bacteria. Prebiotics are just simple sugars and are so bad for you. Prebiotics actually go against everything that you teach. When these bacteria die off. They emit toxic gasses and cause bloat and water retention. The 10 lb gain that you experienced was directly from that. Cheaper probiotics that are bought and stored at room temperature all have FOS. Only buy probiotics that are refrigerated and kepts in amber glass bottles. The majority of probiotics bought today are filled with mostly dead or mislabled bacteria. The refrigerated stuff is usually the most reliable and doesn’t contain FOS. Now, the food that you consume largely dictates the type and amount of certain bacteria that you have. So, if you eat pizza you have pizza-loving bacteria. If you are a vegan, then you have green-leafy veggie loving bacteria. A good experiment to try is to become a vegan for 4 months. Then go have a steak and pizza and see what happens. The green leafy bacteria won’t be able to handle the new food and they will emit toxins to cause bloating and diarrhia to expel it out of your system. This is called the herxiemer effect.

    • shumee

      Whats FOS?

  • LactoMan!

    BTW, L. bulgaricus is actually quite good for you as it regulates water retention, B-vitamin complex production, IgA, IgE and general immune system regulation as well as aids increased feed efficiancy of certain nutrients. However, it must be transported, stored and bought in a refrigerated manner. I don’t know who told you that L.bulgaricus was bad for you and produces bad histamines but they need to go back to college and retake their microbiology and qualitative biology coursework again.

  • Joe

    Does anyone see any major danger in just taking a small amount of an anti-histamine? Such as 1/2 a Zyrtec? If degrading histamine is the goal, may this work? Or am I barking up the wrong tree?

    • Dory

      Zyrtec does not break down histamine; it works by blocking histamine receptors. People taking it can still have high levels of histamine, which is why if they’re still exposed to allergens, their reactions can be just as bad when the medication wears off. In my opinion this is like getting hurt and only taking pain pills to not feel it anymore, without addressing the actual injury.

  • Lilu

    This is nonsense. Here’s a recipe from the old mother Russia. Buy a gallon of milk, heat it up. Take a bunch old chinese soup containers, put a table spoon of sour cream on the bottom, fill with milk, and leave out for 24 hrs. Now you have home made all natural yogurt with all the bacteria you will ever need. Cheap and easy.

  • Debbie Belcore

    I think there is an editing error in #3. You want the phenols to feed the good bacteria (bacteroidetes). The firmacutes are “bad” i.e. they are NOT CUTE!

    • Fruitbat

      I was also wondering about the firmacutes as that sentence is just kind of hanging there…

  • TorBaker

    “charging a fair price for ***impossibly*** high quality dairy.”…..I agree with that, lol

  • mark

    Thats it I’m out

  • mark

    want to not feel ‘fuzzy’? make sure you consume 80 ounces of water per day

  • Laura T.

    Does anyone happen to know where Jay Robb’s Sweet Dairy Whey “Lactobacteria Food” falls in the histamine spectrum? There are no specifics on the packaging as to the specific type of bacteria.

  • Deanna Brizgys

    I tried Amasi, and I loved it. Truly. It was the first dairy product I’ve consumed in a long time where I felt like I was doing something good for myself, and it didn’t make me break out like every other dairy out there. I ended up deciding for myself, though, that dairy was not an important enough part of my diet to warrant the cost, and I also hit a weird point where instead of drinking it because it felt like my body needed it, I drank it because I… couldn’t… stop… drinking… it… At that point I realized it was more of an addiction, probably a sign that dairy still doesn’t make me Bulletproof.

    As for the message in this post and others, I’ve followed Bulletproof as best as possible without actually buying any of the products due to cost (except the cookbook — not gonna lie, for only a few recipes it actually shifted my whole cooking paradigm). I make grass-fed meat by going to local farmers. I often actually skip the farmers market because I know some local farmers who do not participate in the markets and sell their products for less expensive. I know which ones to go to for my best eggs, or beef, or pork (unfortunately for ease it’s not all the same farmer). In turn, since I’m eating such nutrient-dense meat, including organ meats and bone broth, I end up eating far less vegetables than I used to. They provide more of a condiment to my braised meats than the actual bulk of my meal. Otherwise, I drink shots of green drinks like wheatgrass or add some fermented veggies as a condiment, and while I take this article under advisement, I’m not going to stop eating my small amounts of fermented foods as a result. I have noticed improvement in so many ways with Bulletproof guidance that sure, some suggestions seem extreme, but I use what works for me, and what doesn’t, I take under advisement for some future endeavor.

    I was sitting in a master-class with Pulitzer Prize-winning playwright Suzan-Lori Parks, and she said this: “When you hear advice that jives with you, take it. When you hear advice that doesn’t jive with you, don’t take it. And know yourself well enough to know what does and doesn’t jive.”


  • Kristian Kornum

    Have you seen this new study. I am missing a more detailed destription of what they fed the fat eating mice. But that’s the usual thing with studies.

    So was also wondering if you have had your gut tested for bacteria etc, and hoping that you could coment on the study and your personal bacteria findings on the bulletproof diet.


    Keep up the good work!

  • kalidestroyer

    Dave you are either being intentionally obtuse or are feigning ignorance about what the issue is with beyond organic/bulletproof partnership and multi level marketing. You are personally profiting from the beyond organic partnership. You could have simply told your audience that you endorse the product, don’t endorse the mlm, provide a link, and leave it at that. Instead you did what rational profit maximizers usually do, you attempted to maximize your profits which includes not offending your consumers, workout which you make no profits through this site. You chose to have Jordan on your podcast after “long discussions”. You are now, through your company’s partnership, endorsing multi level marketing notwithstanding an overwrought publicity campaign to market your company’s motives in a positive light. Please disclose how much money you make per transaction with beyond organic through this multi level marketing partnership. If this partnership was undertaken for the benefit of your consumers and not for yourself then you should not be ashamed to disclose how much you are benefiting. You have already told us how much we as your consumers are benefiting through our access to “customized Bulletproof packs at special discounted rates for the Bulletproof community”, now tell us how you are benefiting from this multi level marketing partnership

  • rada

    Really you are missing the real culprit. NO diet, bulletproof or any other diet will ever work long term. It is the chemicals in our food chain that have changed our body’s ability to function efficiently, and the low carb, low fat diet fads that we seem to have accepted as a good way to eat. Lack of fresh air to breath, lack of pure water to drink, and lack of regular exercise, not just an hour a day in the gym but a continual movement all day. Processed prepackaged foods and now GM foods. Then we have the antibiotics and so many drugs available for every ailment, and vaccinations that put a multitude of nasty chemicals straight into our bloodstream. Our body has not adapted to these changes over the last 100 years. You can eat as much ‘pure’ food as you can get, consume all the probiotics and vitamins, yet it is not enough to combat the stress in our lives, and the environment we live in now.

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  • kalidestroyer

    I see my post has been deleted, apparently the old stated policy of not editing or deleting posts has changed given the increased popularity and mass appeal of Bulletproof products. Anyway since Dave has trumpeted the alleged benefits to the “bullet community” (ie those that he hopes to sell products to) of participating in the Bulletproof/Beyond Organic business partnership he should also mention the specific monetary profits he is earning as a result of this. I mean what does he receive in exchange for his “work with Beyond Organic to create customized
    Bulletproof packs at a special discounted rate for the Bulletproof
    Community”? If Dave’s only intent in mentioning the beyond organic dairy product was to say the product is high quality, then simply say and provide a link. That’s not what Dave did. He had him on his podcast and he’s participating in the multilevel marketing campaign. The issue is how much is Bulletproof brand benefiting from this seedy partnership. We, the consumers, are financing these profits, release the numbers or end the partnership, that is the only ethical move Dave. And announce that you edit and delete comments or cease editing or deleting. I know you want to transcend your initial supporters and consumers and become a massive business but this is not the ethical way to do it. I know you didn’t learn better at Wharton but this isn’t Wallstreet or D.C, consumers have many options and we will exercise them.

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  • Kim

    Our son has histamine producing gut bacteria due to antibiotics. His body was taking all of his B6 to make DAO to get rid of the histamine (and it still didn’t get rid of all the histamine )so he didn’t have enough B6 to make serotonin so he was very depressed. Now we are supplementing with the P5P form of B6 and he feels great! (We have to cut the enteric coated tablet in half or he doesn’t absorb them very well. It works fine even when they are cut in half.) P5p might help others who are having problems with high histamine. We found that 100 mg a day of regular B6 wasn’t enough to get rid of all the histamine so even if you take 100 mg of B6 you might benefit from more or change to P5P, which is stronger, so to speak, and 100 mg does a lot more.

  • Patrick D’Onofrio

    Anyone use this probiotic? It looks like it is specifically designed to address histamine levels.


  • Scott Crocker

    Jordan Rubin of Beyond Organic is one of the top guys in this entire field, and his Amasai product is solid ..

    I’m not planning on joining his mlm, but if I find myself ordering a lot of product I might.

  • Shreya Mohanty

    Hi Dave, great blog shared above. Really very useful information shared regarding probiotics. Thanks for sharing which food to avoid. Awaiting for more such useful blogs.

  • Neil Stansbury

    When you don’t cite any references to your assertions, it just calls into question everything you say. The science – at least in part, would appear to disagree with your uncorroborated sweeping statements:




  • Julie R

    How come EVERYONE else recommends saurkraut and other fermented foods…including Abel James as healthy???


    • MT_Dreams

      Dave is not the only one, other doctor’s do as well. It’s the in thing right now, and does seem to help a lot of people with gut issues. That being said, there are potential draw backs, though that is probably the case with most things we put into our body.

  • Beneficial Bacteria

    This is an interesting article, and I had not previously given too much thought to dietary sources of histamine. Do you by any chance have an idea of how homologous bacterially-produced histamine is to histamine produced by mast cells in the body?

  • Rachel

    Dave Asprey,
    Can you please cite a reference that lists from where you draw your information about bacterial species being either histamine-degrading or histamine-producing. Thank you very much.
    Rachel Green

    • svg1234

      You’ll be waiting a very long time for that list. 😉

  • Hmm… Thoughts on this article? http://www.ncbi.nlm.nih.gov/pubmed/23474283

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  • Dara

    I’m allergic to dairy so can’t use this product. Want to make my own non-dairy version but need the list of probiotic strains.Couldn’t find a listing on the Beyond Organic site. Thanks.

  • lstoutner@gmail.com

    Please do the research on “Dr.” Rubin.

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  • Sally J.

    Has anyone used the strain of bifidobacterium longum (mentioned in the article) called BB536? It does wonders for me when I’m feeling uncomfortable or eat something I know I shouldn’t that isn’t recommended by bulletproof.

    I used to buy it from my local health food store in NY but they stopped carrying it. I think the product was called Probiopure.

  • Rob

    WTF? Kefir is fine and has cleared up all of my gut health issues. Gastro-esophageal reflux and IBS.

  • A person of integrity

    where is your INTEGRITY when the owner of Beyond Organics, Jordan Rubin, claims to be something he is NOT!

    Do you have any idea how easy it is to fake credentials? For example, let’s look at Rubin’s various degrees.

    First of all, he claims to be a Naturopathic Doctor – or at least tries to fool you into believing he is by adding an N.M.D. (Naturopathic Medical Doctor) after his name. He says he received his degree from the People’s University of the Americas located in Puerto Rico. But this so called “university” is not an accredited naturopathic medical school and never has been.

    As a matter of fact, even its website states that it’s not accredited. It has no campus, no physical buildings and offers no bona fide degrees in higher education. Its only recognition for anything was back in 1989 “to provide a course of study in the English language and in the history and government of the United States” for “aliens wishing to adjust from temporary to permanent status under Section 245A of the immigration and Nationality Act.”1

    Let’s set aside the fact that People’s University (P.U.) is NOT an accredited school. Any authentic medical degree (MD, ND, OD, DC, DDS, DVM, etc) includes a huge amount of clinical, hands on training. So, how could Rubin have done this at an unaccredited school that has NO campus, NO buildings and NO facilities? It’s impossible.

    What about his PhD? According to Rubin, his PhD comes from the Academy of Natural Therapies (ANT). ANT is another unaccredited correspondence course (beginning to see a pattern?). However, ANT was shut down by the state of Hawaii after a big lawsuit by the Office of Consumer Protection.

    The court found ANT’s founder, Stephen Byrnes*, was breaking numerous laws and conferring degrees to anyone willing to pay his fees.2 By the way, Byrnes could not produce any records or information about his students, their curriculum, their grades or the completion of their studies. “Pay a fee, buy a degree” was the only stipulation. In other words, Rubin just bought his unaccredited PhD as easily as you or I could have (if you or I wanted to).

    How about Rubin’s CNC (Certified Nutritional Consultant) credentials? This came from the American Association of Nutritional Consultants (AANC). And, once again, ANYONE can pay their fee (currently $60) and receive the title of C.N.C. The application asks for education, degrees, etc., but it’s not required information – it can actually be left blank and the applicant still receives the title.

    The only required information is a name and address. (For mailing the unaccredited degree.) The applicant supposedly has to pass an examination to receive full honors and the AANC conveniently sells all the books needed to pass. But this test is self-administered, which means applicants can look up all the answers or even have someone else do it for them. This organization is so ludicrous that people have actually paid for the C.N.C. distinction for their cats, dogs and goats.

    So, when it’s all said and done, what sort of credentials does Rubin have? NONE! And, if you’re willing to give him credit where he’s unaccredited, then you might as well also give him direct access to mess around with your checking account, your credit cards and the health of your body.

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  • Eileen Driscoll Rubens

    My husband has ulcerative colitis. When he follows the Specific Carbohydrate Diet, anything w/ bifidus bacteria is “illegal” on the diet. It may be okay for folks that aren’t having a flare up or whose gut flora is balanced, but if you are in the middle of some flare-up, it is NOT recommended b/c the creator of the Specific Carbohydrate Diet noted that bifidus tends to take over in those situations. Everyone’s gut is different and everyone’s gut garden is different, it’s too bad we can’t get a baseline when we’re feeling well, such as a saliva culture or some other culture so that when something has gone awry, we can test again and see if there’s a difference that addressing would help.

  • Lynx

    Apparently, I’m going to have to stay fat and foggy, ’cause I can’t afford to be Bulletproof. Coffee makes me throw up. I know from past experience that supplementing with Bifidus makes me sick, sick, sick. I can’t afford Amasi: I can afford to buy cream and make my own yogurt — fermented extra long to remove the lactose. Farmers who try to supply raw milk in my state are harassed, so I can’t get raw dairy. I can’t afford probiotic almonds, but I can buy cabbage and make my own sauerkraut, in which one of the primary lactobacilli is the recommended l. plantarum. And so on and so forth. What about Bulletproof on five dollars a day or less?

  • Thaddeus Blevins

    I have been reading/listening to Dave’s podcasts for a long time, and this makes intuitive sense to me. I have always questioned the logic of just consuming any and all probiotics without concern or concept for what impact each individual strain may be having on our health. I think there is a reason why fecal implants, etc. are having a more dramatic impact on the health of their subjects than if those same people were just eating yogurt or taking an OTC probiotic.

    I have been doing some research on places to find the histamine degrading bacteria that he mentions….the first things that I found are B. Infantis is the probiotic found in the well-publicized probiotic “Align,” and L. Plantarum is the probiotic found in Good Belly fruit drinks. You can get both of these at your local Kroger.

    But here’s the catch….

    Align contains milk (as does Dave’s product), and Good Belly contains gluten (even the “gluten-free” kind contains oat flour). So if you’re overwhelmed with food sensitivities and auto-immune issues like me, these would defeat the whole purpose of consuming these bacteria.

    However, I have found that Kirkman makes a couple products that meet what Dave is describing…the “bifido complex” has B. Infantis, and B. Longum, and Lacto Duo contains L. Plantarum, and L. Rhamnosus.

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  • coby

    Amasi – delicious but most of the flavors full of cane syrup or just plain sugar. Do you still think those are a good choice? Not sure about that. Thanks for your input.

  • Roberta

    What would you say to someone who hasn’t taken probiotics for two years, has avoided any good bacteria through food & does anti-fungals everyday, takes up to 3 teaspoons of oil on an empty stomach & feels much than before?

  • md

    all micro organisms in the body are bad. Their is no such thing as beneficial bacteria. google mdimarco87

  • Don Z
  • Michele David

    15 years of high Antibiotic use?! Just bad and a gut killer. Bulletproof…smulletproof.

  • Fruitbat

    Your research on which gut bacteria strains are good or not re histamine is great, has saved me loads of time and I’ll now switch probiotic, many thanks!

  • rose

    you are totally complicating things beyond complication- just use aloe-mp or floracel- I don’t work for them or anything- they completely solve all stomach problems from ibs to cancer and boost the immune system too aloe mp feel better

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  • Brandon Moores

    Hi Dave, Great article! Do you or any of the readers happen to know if Bacillus coagulans (http://www.mtcapra.com/yo-quick/) from Mt Capra tends to increase or decrease histamine and anti-inflammatory agents?

  • Jeremy

    This is a vast oversimplification, and over specificity on a singular aspect. If this was true in its entirety, kefir would not have been consumed for centuries by a multitude of ethnicities. Then again, my sister is allergic to dairy…so all dairy must be bad using similar logic. :p On a side bar, having grown up on a cattle farm, I want to scream whenever I see “grass-fed beef”. I am more convinced than ever that people use that as a buzzword without having any clue on the feeding cycles of cattle in small to medium sized farms and large commercial feedlots.

    • svg1234

      Agree with the first part of your comment, but what are you saying re: “grass fed beef”? Wish you had gone into it more. I don’t check replies (not even sure how to), but if you email me (slickvguy@yahoo.com) I’d appreciate it. Thanks.

  • Fruitbat

    There’s more discussion on this topic (which probiotics are best/worst for histamine intolerance) from the very helpful Low Histamine Chef: http://thelowhistaminechef.com/these-probiotic-strains-lower-histamine-rather-than-raising-it/

  • Fruitbat

    This topic is discussed further in the following places by Chris Kresser and The Low Histamine Chef – they add more histamine producing and anti-histamine species to the list Dave has started here:

  • Jakept

    Wow… you “write off” a traditional food that has been around for since recorded history, only to flog off the same product packaged differently with added bullshit… Thank god i through read this B/S , I almost subscribed to the entrepreneur!

  • dawn

    this guy is an idiot and scam artist. DO NOT BUY HIS STUFF. He has little to no evidence backing any of is products. His only redeeming quality is that some of his guests are on the up and up.

  • Brian

    Amazing, this is exactly the type of stuff that I do in my company but you are certainly next level. Thank you for this great article.

  • 1301201815

    I’m so glad I found your site. I have two kids with autism and we’ve been doing biomedical intervention for almost two years now. We avoid gluten, dairy, soy, corn, sugar (excessive), food additives, chemicals etc and in my son’s case he’s allergic to egg so we also avoid eggs and egg-containing products. We also give them supplements like zinc, magnesium, Vit c, enzymes etc…I still don’t see much difference the improvement is so slow but when you do something wrong, it’s like he goes back to where we started. It’s heartbreaking and I’m thinking of ditching the diet but after reading your article, it made me re-think my next move. Perhaps we should still keep the diet and just pick up tips/ideas from your site. Bless you

    • 1301201815

      Sorry that is God bless you and more power.

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  • RU4Real

    Wonderful article and advice. Now excuse while I enjoy my Sicilian pizza and hot fudge sundae, then slip into my size 6 dress and meet my gorgeous hunky boyfriend for a night of “fun”.

  • Linda

    Dave, are you sure, bifidobacterium infantis or longum DEGRADE histamine? I have followed up the references you provide and none, NONE of them contained such a statement. There are however a few publications, e.g. number 10, which I could not read completely via the link you provide. is there really anything in them that this is true? I would be glad if it is, but please please tell us if all this is really true und most of all, in which of all the publications you cite is this proven. thank you so much in advance!!

    PS: the only bacterium I found which has proven capability to degrade histamine is L. plantarum:


    however, within the species of lactobacillus plantarum there are many strains with differing abilities to degrade histamine. Thus, only because something contains lactobacillus plantarum, it is not at all sure yet, how much histamine degrading ability is present.

  • Robin

    Dave Asprey, I have ethical issue with this tricky wording: “The fermentation of the Amasi is influenced by key histamine degrading bacteria: Lactobacillus plantarum, Bifdocaterium lactis, and Bifidobacterium longum.13,14 These particular strains not only lower histamine levels, reduce inflammation, and improve digestion, but Amasi as a whole food helps improve absorption of specific nutrients such as vitamin B6, B2, and K, folic acid, niacon, and zinc.” I called the company and they will not reveal the bacterias used to culture Amasi. It’s considered “proprietary.” The problem with your creative wording here (influenced) is that you are not revealing if the ferment is also “influenced” by histamine producing bacteria as well, which would be a bit important for people with true HIT or MCAS. How about being forthright and honest instead of using tricky wording? Personally I’ll just use a histamine safe probiotic blend and make my own fermented drink from local pastured heritage non homogenized milk.

  • Mark


    Garlic, tumeric, and ginger will block histamine producing bacteria, and will be far easier on your pocketbook.
    I would rather cut off a limb than pay for those bulletproof packs. Kind of like when you sold earthing mats on here…

  • Laura Grace

    I wish at least these were in stores so it was simple to try it out. I have never had anyone mail me yogurt before…

  • Ben

    Dave, from your experience, can histamine intolerance be linked to high blood pressure, I’ve read it is more common to cause low, but I’ve also read it can cause both.

    Thanks for a great article!

    • bvwredux

      From what gather, as you did: both. Histamine has SO MANY interactions and sources in the body that it is even hard to get a handle on what “histamine intolerance” means, except that it varies widely even in one person! I’m new to this, having suffered a serious case of SCOMBROID POISONING back on 3 July 2014, and now having many effects from what seems to be “HIT”. I call it HISTAMINE CHAOS.

  • John D

    Hey everybody, I’m a 19 year old freshman in college. For the past 3 years I have been enduring severe stomach and phsyiological pains. At first I thought it was simply acid reflux but after the various diets and pills I’ve been on, I can defintely say that the problem is bigger than that. I am almost positive that I have a histamine Intolerance but I have absolutely no idea where to go from here…I mean I have a refrigerator in my dorm but that is it! If anyone has any ideas or plans that I could follow to achieve a low histamine diet, please give me a heads up…I’m tired of being in pain.

  • Charles Knouse

    Dave, I think you have a great blog, and I think you’ve made some important personal discoveries. As a physician and researcher, I’ve been wrestling with this matter of inflammatory foods for years, and working to separate fact from boolsheet. The web is FULL of boolsheet, from both mainstream (corporate goul boolsheet) and new-age writers (hopium smoker boolsheet), and I think you’re actually at the 80% correct, 20% boolsheet level, which is actually pretty fabulous. I would tell you that I am VERY SUSPICIOUS of any claim that goes against veganism – and that certainly includes dairy. You spin a great story about the bacteria and the genetic strain of cows, etc, but that’s what all MLM’s do really well, spin a GREAT story that’s all boolsheet, man, boolsheet. I see no real scientific data, just a great boolsheet story. I personally will have NOTHING TO DO with any friggin’ MLM’s, but I’m not going to unsubscribe, I just wish you could find a better way to support yourself. I fully appreciate the difficulty of making a living off the web, but MLM’s….oi vey. Regarding your various so-called scientific claims, I’ll get back to you on those, but I would point out one quick fact to you: olive oil is neither healthy nor benign. It is high in oleic acid, as most vegetable oils are, and a diet high in oleic acid leads to immunosuppression, loss of cancer immunosurveillance, and an elevated risk of cancer. It is very important to understand that the tiny improvement regarding heart attacks in the mediteranean (sp) diet is wiped out by the increase in deaths from cancer, due primarily, I believe to two factors: the inclusion of meat and way too much olive oil. I have made the personal determination to use only coconut oil and red palm oil after extensive, objective literature research AND paying close attention to my body. Olive oil is part of the 20% where you’re full of boolsheet, man (pronounced “mahnnnn”), boolsheet.

    Very Best Regards, Dr Knouse

    • svg1234

      There is no real proof for any of the claims made in this article. A lot of supposition and hypotheses. I have no idea who the author is and won’t make any assumptions about his or her motivations. But articles like these are a dime a dozen on the web. And when someone claims to KNOW, or to have the answers, I can only laugh. Bottom line: eat what ever the f you want. There’s no evidence that ANY of it matters at all.

  • Shaun

    Sorry everyone but it’s all about good and bad bacteria and after experimenting on myself, learned that we need them both.I have started to react to yogurt and probiotics after trying them for a very long time (inc S Boulardii) and now I can see chocolate has a much better affect on me than so called healthy stuff. Just eat, drink be happy… no need to dig into all these stuff, trust me

  • Ergerg Erfgerg

    Here is a pro tip; do not bother to eat anything or drink anything that is not bulletproof”

    Top Kek

  • Guest

    What is the reference for this quote:
    “The different strains of studied probiotics are categorized as (1) histamine producing bacteria, (2) neutral bacteria, or (3) histamine degrading bacteria”

  • Lars Christensen

    What is the reference to this sentence?
    “The different strains of studied probiotics are categorized as (1) histamine producing bacteria, (2) neutral bacteria, or (3) histamine degrading bacteria.”


    • bvwredux

      A cite would be enlightening.

  • Rob Urban

    Dave, I think you’re on to something with the histamine production. It’s also what the body produces with allergic reactions. Where can I find the histamine properties of the following bacterium? Most of these are in OTC yogurt but I can’t find whether they produce histamine, maybe you already know and can help. Thanks


    Bifidobacterium lactis

    Lactobacillus salivarius

    Bifidobacterium breve

    Lactobacillus paracasei

    Lactococcus lactis

    Lactobacillus brevis

    Bifidobacterium bifidum

  • svg1234

    Any actual proof, you know SCIENCE, to support the over-the-top claims in this article? A lot of nice-sounding gobbledygook.

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  • That Guy Who Said That Thing

    My favorite part of this article is that the author never bothers to support any of his made-up claims.

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  • StevieP

    Dave this a great post, thanks for all the useful info here… I have been struggling with histamine intolerance for some time now and am trying to up my omega 3 consumption to help decrease some of the inflammation that I’m experiencing. I know that grass-fed meat will boost my omega 3 but if I were to take any supplement, what would you recommend?? I seem to struggle with most fish/krill oils because of their potential of being higher in histamine. Is there a potent omega-3 supplement out there for those with histamine issues??? please help! thanks

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  • Nutrition physiologist

    Gained 10 pounds in a week because of a probiotic? If 1 lb of fat gain (assuming fat and not muscle…) is approx 3500 kcal, that would require something in neighborhood of 42000 kcals dietary intake for the week (~2000 kcal/d maintenance). And that same weight was lost in 1 week? The credibility of this site is seriously flawed with the personal examples that are physiologically impossible.
    If you want facts, read the peer-reviewed literature on government websites like PubMed.

    • bvwredux

      Reading the typical scientific paper of this era is like chewing on aluminum foil. Very uncomfortable, off-putting and not engaging. Utter nonsense that good science progresses off of terrible writing. (Even though Einstein’s Nobel came off his deciphering Brown’s horribly written monograph of microscopic motions.)

      Dave is a good writer and combines logical analysis and some science with marketing. A pleasure to read his stuff.

      Speaking to my experiences wrestling in HS and College, weight gains or losses of 10 pounds in days are quite doable, short term. They don’t sustain long, sure, but the claim is verified by my personal observations and experiences.

  • larkinvonalt

    This whole site is just a sales pitch, start to finish.

  • foxmulder

    In the UK in the 3 brands of yoghurt I eat (regular supermarket stuff, nothing fancy) none of them contain any of the histamine increasing bacteria you mentioned. So quit the sensationalism and fear mongering and stop trying to peddle your bs products to people.

    • bvwredux

      Can you name the brands or point to their ingredient labels on the web at all?

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  • Danny Bruce

    Hi Dave,

    Not sure if you still read these comments but I had a question about the prebiotic/coffee experiment that you described in this post. You said that you supplemented with FOS as a prebiotic, which has been shown to be unstable for maintaing a healthy gut biome because it feeds the bad bacteria as well as the strains that we have identified as probiotic (http://www.ncbi.nlm.nih.gov/pubmed/10620476). My question is whether you think the results would have been different if you were to use a prebiotic derived from resistant starches, such as potato starch, instead of fructooligosaccharides?

    Thanks for any insight you can provide, I’m just a fatty at heart trying to find the path of least resistance to health and happiness.

    Danny B.

  • jnlwriter

    I can’t tell if you are saying that this sentence: “Blueberries, coffee, and chocolate can feed a type of gut bacteria called firmacutes” is good or bad? Actually, firmacutes are associated with obesity, and blueberries, coffee and chocolate REDUCE them; they don’t feed them. http://www.ncbi.nlm.nih.gov/pubmed/24629912

    • bvwredux

      If I read the summary of that study correctly, high fat and coffee are problematic. But I am not sure if I got that correctly, and ask to be corrected if not so. Besides it is a study of rats, and rat guts aren’t human guts.

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  • Bert

    Instead of purchasing probiotics which can get expensive I purchased water kefir grains from amazon and they multiply daily so I dont ever have to worry about running out. https://vid.me/vFX

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  • Stacey

    I’m wondering if there is a probiotic supplement you recommend besides amasi? Thank you. I am histamine intolerant was sick for months before figuring out the probiotic I was taking was causing it.

  • NYC Farm Lover

    Some of us actually do want to know where to buy higher quality products since we can’t trust government certifications or quality control methods, and not everything is available at the Farmer’s Market. I know most of you complaining just want everything for free including David’s time, but we all have to make money. And it appears David has found ways to make money helping people get healthy or healthier. Bad David, you should stop helping us and just push Monstanto’s GMO foods like everyone else. I actually suspect that some of you are GMO people just trolling the net attempting to discredit people..

  • StevieD009

    Really glad I discovered this site, has a lot of what I’ve been researching and discussing with friends and online, and is well put together. This is a great article detailing the what and why of probiotic strains – there’s so much information out there and it’s good to have a nice, succinct source. I don’t mind the plug for Amasi at all, as you say it seems to be done with integrity. Thanks!

  • Alan D

    So just tried switching out yogurt as main source of protein for a couple weeks. I guess I watched too much burn notice. Anyway, it was whole fat, greek or greek style, usually with active compounds. I tried various brands, Whole fat Fage was by far the best tasting, but a hard find. Some of the yogurts listed health benefits, but seemed poor quality, one had this really slimy light texture . I ate half to 1 tub per day with some honey at night mostly but 1 or 2 lunches were in there. I haven’t tried Amasai. However the yogurt swap was really bad news for me I blimped out, in 2 weeks I put on 20lbs nearing my Fattest ever, before I decided a course correction was in order. Some batches were also definitely not great, I definitely noticed very quickly, bloody and green mucus; very sticky and difficult to cough up. This may have been remnants of a summer cold, but they definitely got exacerbated. Checked things out with Food sense and wasn’t bad but the scale and mirror don’t lie, I’m fat in places I didn’t thing could get fat before.

    So for me, right now, yoghurt = bad. I may try again when I’m working out more frequently and have wiggle room. But I’m not going to try that at my current body composition, I really enjoy my joints.

    Any way I’m going to try the Rapid fat loss protocol in a week or so once some pennies drop and I can get the labs. My dad has awful kidney stones like 5 a year, and I never ever want that so I want to make sure I don’t break my kidneys.

    I like Jordan’s concept but I think the execution was low rent for a while, I just checked it out and he’s improved his presentation somewhat and limited his line excluding the “super beef” which I was totally into but they only had crap like hot dogs and ground beef or super expensive stuff like ribeye, no middle ground like sirloins, skirts, or other large budget friendly roasts.

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  • Jack

    Predictable … You just try to sell you rproducts via a reseller. Pathetic as always.

  • Russ

    This article is full of factually incorrect information. For example, L Casei DEGRADES histamine, it doesn’t produce it:


  • ccbe

    is bacillus coagulans a histamine neutral or degrading strainu?

  • Fisher

    and arguing back and forth…As if ‘bulletproof’ really meant anything. A rich
    dude buys a bunch of high end crap and starts a podcast hocking his brand of
    ‘researched’ and ‘tested’ products and a bunch of patho-followers start moving
    in a big herd towards him. No proof necessary and the stuff could be poison but
    the herd mentality keeps everyone swearing that it really does work even in the
    face of failure or…”you obviously did something wrong”.
    I tried the bulletproof coffee after hearing all of the hype about it and it gave me the
    worst diarrhea! I am not the only one this has happened to either. Not by a
    long shot and yet this stuff is hyped as some kind of secret health agent that
    only the “insiders” know about. No warnings about possible gastric distress, nothing! What a bunch of baloney! The sheep keep following this hype. There is no “hacking” of the body. It functions the same as it has functioned for eons.
    Exercise. Eat the best veggies and meats you can afford but, don’t worry, you won’t die if they aren’t all organic. Read. Exercise. Have good relationships. Speak to a counselor. Try meditation and yoga. Read. Exercise. Take quality supplements. Use sites like Consumerlabs to make sure you are purchasing good supplements. There is no secret “hack” that will give you an edge over being healthy other than just doing what Nature wants you to do.
    “Expensive” doesn’t equal ‘good supplement’ any more than it equals ‘good food’ nor is forking over excessive amounts of your cash necessary to live a happy and healthy life. The simplest answer is usually the correct answer and Nature is simple. Keep your money in your pocket. Best of health and happiness to everyone.

  • healthguru

    Yes yogurt can make you fat if you are not consume wisely. However, everything has both good side and bad side. Yogurt can benefits to you many ways such as reduce diarrhea, enhance your immunity. I suggest you read for more information: http://prescriptionfact.com/is-yogurt-good-for-you/

  • Kara

    Thanks for the wonderful information. I learn lots from this article & I admire people to put the time into helping others & making a positive difference in people’s lives. I find the MLM companies generally have a hight quality product at an affordable price as the cut out the middle men. They don’t pay millions on advertising, no shop front etc etc just word if mouth. Be proud to recommend a MLM company. Is much rather my money go to independent consultants & product development than to all the other processes…

  • Katie Anderson

    This article spoke to me. I have been dealing with chronic urticaria (hives) for the past four years. I’ve been to allergists and dermatologists who could not figure out what was wrong with me. The only way I can stay off of taking three antihistamines a day is by clean eating. I had NO idea that yogurt could be contributing to my problem. I have bookmarked this article and am so glad I stumbled across it.

  • Deb

    Thanks for the info, very helpful. I’ve recently had a histamine reaction sparked by probiotic yogurt. It also happened a few years back when eating too much cheese. I do have a lot of histamine foods in my diet but no real issues until now. The probotic supposedly contains the following: bifidobacterium, L. Acidophilus & S. Thermophilus. S. Thermophilus is also used as a starter culture for a lot of cheese. Your article states it as neutral but I think I may question that as I think it may be the cause of my flare up rash around my eyes and mouth. Looks like it is possible that S. Thermophiles are a histamine culprit: http://www.sciencedirect.com/science/article/pii/S0958694612001549

    As you say the strain of bacteria is so important and I’ll certainly be researching more into the strains – thanks Deb 🙂

  • blueeyes

    This is the first time ive even heard of having a histamine reaction to probiotics or yogurt. So many studies have come out showing that probiotics or eating yougurt boosts immunity, speeds weight loss and burns belly fat, and aids in digestion and helps treat stomach issues. The best thing that people can do is take a multi-strain probiotic like GNC Probiotics Ultra 25 Million Multi Strain; Schiff Digestive Advantage Probiotic Gummies; Probium Multi Blend Probiotics; and last but not least, Dannon Immunity Smoothies are the easiest and best tasting way to get in a lot more probiotics than just a yougurt itself, and they are small so they take no time to get down. I swear by eating yogurt daily and taking probiotics, since i have started doing this daily since the age of 13 (I’m now 31), i have not caught a stomach virus/bug or the flu, or other bad virus (knock on wood) and Ive been able to eat many more calories without gaining weight. Of course i wash my hands frequently and use hand sanitizer, Lysol spray and avoid contact with sick people. But i know that the probiotics have made a huge difference in my health and that it can help everyone that take it.

  • mangosmangos

    Lol yogurt is supplementing. That’s horrible. Please buy our sketchy supplements instead of real food.

  • tussockgal

    Dave, what do you know about this strain and has it got a place in the Bulletproof protocol – Saccharomyces Boulardii?

  • Mike A

    Sorry, but pretty much everything you state flies in the face of both valid scientific studies and hundreds of years of practical application. In fact, cultures that consume fermented products have the highest rates of longevity. This is especially true when it comes to yogurt, which is far underrated. In fact, the Caucasus mountains of Russia have boasted the longest living people in the world. While the reason for their longevity it anecdotal (and may be because of the lack of stress from being so isolated and living a simple live) their diet consists heavily of red wine and yogurt. People living in the Rhodope mountains of Bulgaria also boast high numbers of centenarian’s with a diet that relies heavily on yogurt. The healthiest cultures in Japan pretty much live on fermented foods. Finally, a recent study conducted by Harvard Medical School shows a significant decrease in the risk of type II diabetes among participants that ate highly caloric and sugar laden yogurt. Other studies show that the simple act of eating yogurt (I prefer pure goat milk yogurt, but even those that ate the hormonal sugary stuff) aids weight loss and reduces risk of infection. Catchy headline, but there is tons of evidence against your supposition.

  • Sue

    Dave – there is an ambiguous statement here. PLEASE CLARIFY!

    Most practitioners seem to recommend removing coffee and chocolate for histamine intolerance. Your title suggests increasing the histamine degrading bacteria, but then suggests that coffee and chocolate actually feed a type of gut bacteria – is this bacteria histamine degrading or histamine promoting?

    “#3) Increase histamine degrading bacteria

    Finding ways to get more histamine degrading bacteria into your diet can be difficult, but is great for gut health and key to reducing histamine intolerance. High phenol foods like blueberries, coffee, and chocolate can feed a type of gut bacteria called firmacutes.”

  • esolesek

    Tomatoes, pineapple and walnuts are bad for you? I dunno about that hypothesis.

    • Annie Scott

      He’s not saying that they are bad for you. He’s saying that they are high in histamine.

  • Michelle

    I know this is an old post but I hope you answer them too. I googled probiotics and weight gain because I began taking a probiotic a couple months ago, and noticed the same kind of weight gain you experienced. Every. Single. Day. I was gaining at least a pound. Unfortunately, I didn’t stop the PB because it was helping me with digestion, so I just ignored the scale and told myself there was no way a PB could do this to me. I am now 15 pounds heavier and haven’t done anything different in my diet. I wish I had found this article a while ago, but sure enough, it contained some of the strains you mentioned, so I am going to stop.

    I was wondering if Lactobacillus acidophilus was one of the histamine-producing ones since I didn’t see that popular strand listed.

    The other thing I was wondering was what probiotics you would recommend for those with dairy and gluten allergies?

    I bookmarked this page in hopes of finding a response, even though this article is old. It sure was insightful, but I simply couldn’t imagine a probiotic causing so much weight gain since I have taken them before and actually lost weight! (It was another vegan probiotic but I can’t seem to remember which brand it was.)

    Thanks so much.

    • h8 ynerz

      Don’t believe the garbage being sold on this website. People will tell you anything to get into your bank account.

  • amine503

    eat everything and die happy.

  • Summer Stevens Spees

    Lactobacillus reuteri is also found in breast milk of most lactating mothers around the world that don’t eat an American-ized diet, and has been proven to not only pass through her milk but is found in the stool of her nursing baby (ies). I don’t believe that it could be in the red zone. Where’s your research proving that L. reuteri is histamine producing?

  • kelvin1234

    Yogurt is not good for health.


    Histamine producing bacteria: Lactobacillus casei, Lactobacillus reuteri, and Lactobacillus bulgaricus (Found in most yogurts and fermented foods).
    l- reuteri which one ,the mother milk based one as well the atcc pta 6475 ??

  • Mike A

    I’m sorry, but thousands of years of history have proven you wrong. Fermented foods are among the healthiest in the world. Asians consume high amounts of miso and soy sauce and most look like they are in their forties when they are in their eighties. Some mountain communities in Russia boast 100+ year survival rates with a diet centered around yogurt and red wine. More recently, a study at the University of Tennessee found that those who included yogurt in their diet (even the store bought sugary stuff) vs. a control group consuming the same number of calories lost 22% more weight, 81% more belly fat and retained more lean muscle.

  • Robert

    Atkins, Bulletproof, Grain Brain, Mercola, Vegan, Vegetarian, carnivore, omnivore, etc. What I found is so simple, it works after a few weeks of coming out of one’s obsessive shell, or shall we call it, prison. Here’s how I found the perfect answer to life’s what to eat or not eat problems. First, dump all processed food, of course that’s nutrition 101, something we all know. Then buy all organic, pastured animal sources and finished on grass, too, and of course vegetables, stuff we actually like and if we don’t like vegetables prepare them so you do like them. About yogurt causing brain fog, here I thought I was getting senile or demented. Seriously, plain yogurt from raw milk from pastured goats or cows is fine, but the brain fog thing is not brain fog, it’s the casomorphin found it milk, human or cow/goat and undoubtedly camel, dog, rat, etc., but let’s stay with goat/cow and human. The other thing regarding dairy is casein content, cow milk has three times more casein, so a little bit is best, like a cup a day at most or half and half raw in organic coffee. Contrary to some purists, a little coffee is healthy, and has been found to keep the brain focused and long lasting. So, we drink coffee and get a boost but add raw half and half with the casomorphin and one picks us up the other settles us down, it’s a wash, but why worry, both are healthy, it’s when we stop at Starbucks or other drug pushing outlets and drink coffee loaded with pesticides, milk or cream from grain fed cows that live for less than five years, and usually we get a drink from Schultz and Co. loaded with sugar costing 2-5 dollars, how dumb can one be. Organic coffee with milk that is raw from pastured cows is worth the money, anything else merely proves what fools we are, and I have been now and then, but I knew it. Back to food and fat choices. What fat are we eating? raw butter, raw cream, coconut oil, beef tallow, leaf lard, duck fat, olive oil, fish oil that’s fermented from a reliable source, etc.? And if we make fat 60% of our calorie intake, one does have to be active enough to burn the fat, it’s a process of moving, working out if one is into that, but everything gets kinky if the obsession thing is our master. The paralysis of analysis is a real thing, have fun, eat when hungry, don’t worry about exactitude, and the idea I read about 11 years ago, let our body guide us, it know best, a hell of a lot more than the conscious mind who needs to settle down. Alice Miller, the great psychotherapist who impressed the world with her Hitler writings, has a book titled The Body Never Lies. If one had a childhood full of not so nice stuff, that’s another part of one’s rehab toward good health, and it involves finding our truth. Once we do that, though it’s not easy, however, once we cross that threshold, everything, weight, sleep, happiness, romance, etc. get on track, we will spend the rest of our life living free, strong and never ever get obsessive again. If the gut isn’t happy, we pay dearly, and to make the gut happy, we only need to eat organic with limited protein, divide body weight by half and eat that many grams of protein, or less, it’s up to the gut to decide, and it will if one relaxes and let’s it happen. We all know the food processors are a bank of thugs with criminal minds and behavior, and they produce non-food, we know that, too. Is there one out there that is trustworthy? I trust one of them and I had a food distribution business and found all of them played games. This Bulletproof dude many be different, but when someone starts talking about replicating African yogurt, etc., I have to ask, does that include tapping the vein of the cow and adding live blood to the milk as I once heard they do. Insofar as this A yogurt thing, why is the word warrior added after Maasai? Is that supposed to inspire us? Do the Maasai still have tribal wars going on. Maybe, but then we white folks of Northern European races, are long lived, the Swiss only second to Japan, and those countries who drink milk more than any other are in the top 20 of the longest living nations. But to hear vegans and vegetarians carry on, they say we’re all going to drop dead and go blind if we drink milk, eat meat, have an occasional glass of wine and drink coffee, and they tell half truths and form whole societies, that is, Vegetarian Society, and what’s interesting is vegetarian diets are often connected to religious orders like the SDA (Seven Day Adventists). I knew one who was studying medicine at Yorba Linda. She had two sister, younger, who were attractive, one winning Miss East Los Angeles, and her competition was impressive, but the vegetarian sister was not attractive. Vegetarians may live longer because they watch what they eat, live healthier over all, lives, but only do a tad better than we barbarians. Have fun, relax, go organic, grass fed, and of course no sugar, wheat (dwarf), sodas, etc. Every vegetarian I’ve know, and I’ve know many, have an agenda, it’s tiresome. If omnivores were as overbearing a vegans society would be in a constant state of angst. Luck, health and happiness to all.

  • Red meat has consistently been shown to be the worst thing you can possibly consume for your gut flora. I’m curious why an article about gut flora completely fails to mention this fact.




    I don’t see any peer reviewed articles being referenced for the claims being made either. The science being espoused here seems to be a bunch of half-truths. It’s like telling someone that electricity can kill you but failing to mention that it can also power your house and make your life a hell of a lot better.

  • Dudley Do Right


  • austin

    Fermented foods are enjoyed by all cultures on earth, they don’t have cases of inflammatory diseases or high histamine levels. Probiotic foods increase diversity which is good. The difference between our culture & that off in the Amazon rainforest is that we eat high amounts of meat, sugar, carbs & dairy. Vegetables are key to maintain that balance. So eat a diet high in greens, low in everything else & eat fermented foods, you’ll eventually rebalance & find a healthy gut along with more benefits. High meat eating is associated with elevated histamine levels as is dairy & especially sugar, so before you make this big post, do your research so you don’t mislead people searching for answers…

  • jnlwriter

    Confused. Multiple studies show that obese people have a higher concentration of firmicutes than bacteroidetes, while in lean people the bacteroidetes predominate. Researchers have observed that overgrowth of firmicutes leads to chronic inflammation. Can you help explain this paradox?

  • Peter Alexeevich Fedorov

    I am a pretty busy executive and I have noticed a huge improvement in my energy levels and my ability to manage stress. I maily just added sauerkraut, keifer, and a probiotics to my diets. I am currently taking acbiotics http://consumster.com/2015/07/09/actbiotics-review-is-it-worth-the-money/. They are pretty good but I am def up for trying beyond organic to how it helps 🙂

  • pf ward

    you seem ok. jordan rubin’s a master thief, you should distance
    yourself & business from him asap!!

  • moore2come

    …endorsing a fermented food product that has 30 different strains of bacteria and possibly yeasts in it that Jordan will not share information about with those who are considering it?
    …how are those who are histamine intolerant to make an informed decision about such a product?
    …my research on histamine degrading bacteria and yeasts tells me that there may be a few strains in this product that don’t generate histamine, but certainly not all of them. If anything, I would suggest most of the strains in the product produce histamine
    …until I can discern what’s in this product it’s not for me.

  • shumee

    Isn’t it funny that Rubin and Gates are banking family 1%er names? I wonder if they have infiltrated the health food movement. Why not? They control everything else in this world!

  • John Smith

    I agree that probiotics are important, I’m not going to take a histamine-inducing strain before holding a business-meeting, but right now I’m on anti-biotics and working from home, so I’m good.

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  • Tim_S

    How about just taking an antihistamine like clorpheniramine before meals?

  • New Greg

    Totally pathetic! Most pseudoscientific article on the topic. Poor readers.

  • grandma_grapes

    THis cracks me up. Just eat. You’ll be fine.

  • William Murphy

    I have increasingly lost whatever respect I had for this brand. What started off as an interesting idea about coffee and fat for breakfast has turned into poorly written sales articles that force a brand name onto things that already existed.

    The title of this article essentially claims that all yogurt and all probiotics cause bloating and decreased cognitive functioning. I read the article to find that it actually says that the author tried supplementing with fructooligosaccharide (sugar) and put on water weight. Then he tries to sell me crap.

    Your clickbait titles aren’t helping your credibility. Neither is labeling everything as Bulletproof (R) when it’s actually just low carb/keto.

  • Richard Wahd

    I guess I might need to read this article five more times until I read where he makes the connection of probiotics making you fat and foggy…

  • UnderTheBedMonster

    Oddly I found a great “cure” for my Irritable Bowel problem. It’s called corn on the cob that has been roasted on a gas grill using a grill mat. I love corn on the cob but boiled in water on the stove….it goes through me like a shot. But roasting it on the grill takes away the corn oil that is not released by boiling. I ate 2 corn on the cobs and did not hit the bathroom in a blizzard of drizzling poo but went the NEXT day like normal. Some thing as simple as roasted corn fixed my problem. Note. Do not put corn directly on the metal grill grate as it is not the same. Using the grill mat makes all the difference in the world. I also cook all my pork chops, steak, etc on the mats and things taste much much better. Be sure to wash the mats after each use with soap and water in the sink as dishwasher does not take off the cooked on stuff.

  • Morgan Lucas

    I’m confused. In your book, you mentioned that the 10 pound weight gain with the prebiotic and probiotic experiment was due to the time of day you were consuming it…since it was feeding the gut bacteria and decreasing you levels of FIAF production. Please explain. I am completely confused by your contradictory explain actions.

  • Sarah Confet

    my business was requiring USCIS I-800A Supplement 1 recently and was told about a web service that has a searchable forms database . If people need USCIS I-800A Supplement 1 also , here’s a http://goo.gl/A2rEZo

  • mike

    This dude has zero health credentials, and some people are latching on to every word like gosep.

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  • Silver Silver

    I am disappointed by lack of research of this author. I had a similar reaction to a probiotic .. i.e. inflammation. From reading other blogs and my symptoms I knew this was a problem with my leaky gut and not the probiotic. I added enzyme loaded fruits like pineapple and papaya. Then added vitamin C & L-gluatmine ( see Dr. Axe’s blog) .. Just within a few days I was able to repair my leaky gut and resume the same probiotic with no symptoms this time.

  • Tiffany

    Do you recommend Rubins soil based probiotic? Primal defense?