HSO’s Part 2 – Is Bacillus subtilis Dangerous?

HSO's Part 2 - Is Bacillus subtilis Dangerous?

Bacillus Subtilis: Any Benefit of the Bacteria Is Not Worth The Risk

I will not recommend any probiotic that contains any strains from the Bacillus genus, including Bacillus subtilis, to my clients. I will not even recommend the world-renowned probiotic Primal Defense. Primal Defense comes highly recommended for digestive ailments by most of the experts in the natural health blogosphere. 1 I believe that the risk of supplementing with this particular “probiotic” is too great, compared to any benefit towards your health that you possibly obtain from it. Lactobacillus plantarum would give you most of the same benefits. These benefits include being acid stable (plantarum survives stomach acid,) 2 being immunostimulatory, 3, being an anti-inflammatory substance producing probiotic, 4 and also being a bactericide (a substance that eliminates opportunistic bacteria) producing probiotic as well. 5 Lactobacillus plantarum would also be a much easier bacteria to eliminate if it did become opportunistic, compared to most HSO’s.

The most common claimed probiotic bacteria in the Bacillus genus is Bacillus subtilis. Bacillus subtilis is ubiquitous in nature and is found mainly in soil, in either decomposing plant matter or dirt. 6 You might even recognize subtilis’ cousin from the genus Bacillus. The bacterium goes by the name Bacillus anthracis (a.k.a. anthrax!) 7 Now granted; there is a big difference in the opportunistic and destructive capabilities of anthracis versus its gentler cousin subtilis. But, both bacteria share a common characteristic: endospores. 8

Endospores are dormant, tough encapsulations that protect the bacteria from your immune system, antibiotics, antibacterials, and even probiotics. Bacteria can also lay dormant in endospores until their environment becomes favorable for faster reproduction and survival. Bacterial endospores may germinate in the small intestine and worsen SIBO-C overgrowth (like an ingested bacteria would,) share in a “probiotic” communal with other true probiotics for a time, or slowly replicate more endospore bacterium. Bacterial endospores can survive without nutrients for a long time and are resistant to UV radiation, desiccation, high temperatures, extreme freezing, and most chemical disinfectants. 9 Since bacteria in the Bacillus genus are spore-forming, it becomes hard to eliminate them if they become opportunistic. Most proponents say that the endospore aspect of subtilis is a good quality in a “probiotic.” Their reasoning behind this recommendation is that since Bacillus subtilis is encapsulated in an endospore, the bacteria can survive stomach acid when ingested and propagate easily in the intestines. 10 Bacillus subtilis is also known to be immunostimulatory and produces bactericides to help eliminate other bacteria. 11

In the rare case that subtilis became opportunistic, it would be almost impossible to eliminate using standard antimicrobials. Antimicrobials that are used in eliminating Bacillus infections include both conventional antibiotics and natural antibacterial agents, both have issues in treating a Bacillus subtilis opportunistic infection successfully on their own. 12 Biofilm chelators need to be used to help break down the bacterial endospores and depending on the individual strain biofilms so that antimicrobial agents can eliminate the opportunistic Bacillus infections. This is the main why I am reluctant to recommend this probiotic, because if Bacillus subtilis becomes opportunistic, it can be very hard to eliminate from the body. 13

There are a few known clinical case studies that mention opportunistic Bacillus infections occurring in patients with compromised immune systems. 14 15 16 17 One of the case reports theorizes that the main reason for such few reports of infection is that Bacillus subtilis are recognized by most medical professionals as a safe bacteria. Therefore, the bacteria are not tested as the cause of disease or death in most potentially infected patients. One study also mentions that Bacillus subtilis may cause liver toxicity in some people. 18 Most proponents will say that it is fine to supplement with Bacillus subtilis because unless your immune system is compromised, or the bacteria becomes opportunistic, it is a beneficial intestinal probiotic. The problem with this idea is that no one can predict when their immune system may become compromised.

A possible scenario when one’s immune system could become compromised is as follows. You could get into a severe car accident, and because of an injury to your intestinal area, your immune system would become compromised. You are then given antibiotics to stop the sepsis. From taking the antibiotics, you destroy your natural probiotic gut flora. Bacillus subtilis survives, because it is in a protective spore, and it later becomes opportunistic. Antibiotics are then rendered ineffective due to the bacterial endospores, and you become very ill from the opportunistic Bacillus subtilis infection. Do not believe that it is possible that this scenario can happen? Just replace Bacillus subtilis with another endospore bacterium, Clostridium. 19 Clostridium difficle becomes opportunistic during strong antibiotic use which may also be very difficult to treat.

But What About Bacillus subtilis That Is Ingested in Food?

There is some evidence that Bacillus subtilis might be a very small part of the normal gut flora of humans. Bacillus subtilis as normal gut flora has been theorized because the soil is known only to be a reservoir for the bacteria, and it needs a host to function. Therefore, for the bacteria to propagate, it must be able to infect higher lifeforms. Some human intestinal biopsy samples have shown that subtilis does populate the gut in some humans, but not all of the biopsies in the study showed subtilis as normal human intestinal flora. 20 Also, the Japanese do use Bacillus subtilis to produce a fermented soybean product known as natto. The amount of B. subtilis in natto and most supplements are in the billions. 21 On average, the Japanese do not consume natto on a daily basis, but most people supplement with probiotics regularly, and some subtilis they ingest during supplementation may cause opportunistic problems in the future. The problem with the bacteria is not the CFU amount consumed; the issue stems from the Bacillus subtilis itself in its possibility to cause intestinal issues if your immune system is weakened.

I hope I have convinced you to think before supplementing with Bacillus subtilis and try to supplement with other safer non-spore forming probiotics. Remember, any probiotic can become opportunistic. So if you decide to take a probiotic supplement, make sure it is a species that can always be easily eliminated.

47 Comments
  1. Mr Brison, tell me what you think about this
    http://www.doctorsformulas.com/en/product/tialac

    SUPPLEMENT FACTS PER SERVING SIZE 2-4 CAPS
    Lactase 100000 IU 90,00mg
    Lactobacilli Reuteri 100 billion CFU/gr l,00mg 100 δισ. ufc
    Spores of Lactobacilli Sporogenes 15 bn CFU/gr 33,50mg 500 δισ. ufc
    Spores of Lactobacili Subtilis 25 bn CFU/gr 83,28mg 2,5 δισ. ufc
    Prebiotic Maltodextrin 1.000mg

  2. Here is a scholarly article on Bacillus subtilis. At least here there is scientific proof, and not just speculation, that Bacillus subtilis is not as bad as you made it to be. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1428398/

  3. Hello
    I have read this post with great interest. Recently I had a faecal microbial analysis done and to my surprise I have a massive overgrowth of Bacillus subtilis. It’s distribution is 94.33%. I also have zero, yes zero Lactobacillus or Bifidobacterium. After reading this post and the comments I’ve realised it is from the Digestive Enzymes I’ve been taking. The reason I was taking them is because I have had my gallbladder removed and have problems with fat malabsorption. I also contracted a parasite (from getting Bali belly a few years ago) and have undergone 4 lots of different antiobiotic treatment. So I have nuked my gut and unknowingly caused a massive overgrowth of this bug. My doctor has got me taking Orthoplex Intestaclear, plus trying to repopulate my gut with E.coli and probiotics. However, my doctor didn’t have any knowledge about this bug and given your detailed knowledge I would be most appreciative of any suggestions you have? Thank you so much.

  4. To break down biofilms formed by bacillus subtilis which biofilm disruptor must be used?

  5. For gut flora altered by bacillus subtilis, what can be done?

    • It depends on the dosage and how long one took the probiotic. For most it would not colonize and they can recover. For some people it can cause differing gut issues. It depends on the problems one is now having on what should be done.

  6. Just wondering how this protein or enzyme Nato Kinase been absorpt from human intestine? If this bacteria in our gut how does it benefit toward our human body health?

  7. Bacillus subtilis is a killer. I took a digestive enzyme with bacillus subtilis and my digestive system is screwed up and my tension headache worse.

    • How do i restore my gut flora after taking a digestive enzyme with bacillus subtilis which i am afraid may have wrecked my gut flora and digestive system.

      • It depends on how long you took the supplement, if it was for less than a month you should be fine and it probably didn’t colonize. I do not recommend nuking your gut with antimicrobial agents unless it is causing you issues.

  8. I just wanted to say, this was one of the dumbest, most self important, least academic, pseudoscientific “health” blog I’ve come across in a while. Considering how low the bar is set these days, that is really something! Thanks for giving me something to laugh at: you’re stupidity and intellectual shortcomings.

    Have an idiotic day!

    • Thank you for your comment. It contributes greatly to the conversation.

      For your information, there is a mistake in your comment. I believe you meant to say your instead of you are.

      Have a great day!

      • I have serious SIBO, which ruins my life on almost a daily basis. I have dr. tried a reginmen of Xifaxin, which made it worse. Now on Lotronex, which helps but too expensive. What probiotic would you recommend? Am sensitive to high levels — gives me terrible gas.
        Thanks.

  9. My daughter passed January 30,this year.she was one and a half months into her seventh year of life.my only child and in the morning she woke up laughing and happy about our dog.I went to work,her dad got her to school.at noon she came home because of throwing up once.when I get home she seemed weak and confused but thought it was just part of being sick.she was very heathy child.no runs to the clinic except for the common cold.my girl died in bed next to me that night.the autopsy gave us no closer to what happened.they told us it was a viral infection in her bowel.e coli was mentioned put not confirmed, bacillus and others were mentioned but still not confirmed. My girl ended up septic and was gone hopefully in her sleep but I dought it because her eyes were open a bit.I’m begging for someone to give me answers. Please

    • I apologize in the loss of your child and I understand your search for answers for your loss. My heart goes out to you.

      Sometimes answers are sadly not always there. With Abel we knew he was sick and it was a matter of time till he passed away be we did not expect it would be so soon.

      To this day, we do not have a full picture of what happened. Through the autopsy, it appeared that he had a pulmonary embolism from being on a ventilator for so long.

      Losing a child is one of the hardest things anyone can ever endure I believe. It must be harder for you and your family because, unlike Abel, your daughter appeared to be healthy.

      I can only speculate on what happened and nothing more. The viral infection caused some gram-negative overgrowth sub-clinically (this is one of the proposed causes of SIBO,) a lot of cytolethal distending toxin was produced, it overstimulated her immune system, and she either passed away from her overstimulated immune system (cytokine storm) or bacterial toxemia.

      In addition, when people pass away in their sleep, their eye muscles slightly relax and their eyes can appear open as if they were awake. Saw it with Abel and my father.

      But again I am not a doctor, and this is purely speculation. E. coli and Bacillus are normally found in the gut. I am sorry for your loss.

  10. I believe you are correct about probiotics especially b subtilis being unsafe. Cancer is caused by two different types of bacillus viruses plus now things like papilloma virus.

    How do I know this? I was immune compromised and taking primal defense. I had a ear and jaw bone infection not to mention the gut. The jaw bone infection got worse. I had surgery and cavitations. They cultured the bacteria at Dental DNA in Colorado. I had 27 different species in jaw. Most are supposed to be in the gut. I had a bio comp research company send me rife machine frequencies to help clear these. The highest bacteria aalmost off the chart at a dangerous level is eikenella corrodens. It is a bacillus infection!!!! Based on frequencies my body is now telling me to kill those but also b subtilis the spore form of b anthracas. Also almost all bacillus species except lichenformis.

    So yes u are correct. The word needs to get out. I believe children are meant to get dirt in there bodies and build these things up naturally but not adults! Now my body is not telling me to taking any probiotics not even yogurt. I can’t stomach antibiotics. My do Dr believes in rife macines. I’m not about to get pumped with vancomycin well see what happens.
    I
    I am a full believer in Jesus and the bible one night I was having pain. I was told in minds ear to read psalm 45 He said the verse with cassia aloes and myrrh. I looked up the things. There are government studies on all of them due to antibiotic resistance just google it. They are powerful they agree with me but I have to be very careful not to use too much. I have a family and am struggling to regain balance in my body and live a normal life again!

    You can use my comments but change my name!!!!! U can email back I am very smart can answer if u have more questions. Why did I take primal defense, I trusted what I read in j rubins books, like the guy but do not believe what helps one person will help the next. I should have really prayed before taking. Unless there is a chance it was trying to chase the infection out? But I wouldn’t mess with it again.
    So when my immune or body tells.e I’m ready for probiotics what would u recommend. I ws taking pb8 but even that says not for immune compromised.
    Thank you for the website.

    Please pray for my family if you believe what I do.

    • I would not recommend any probiotics. I would advise instead to eat some probiotic foods if you can tolerate it like probiotic sauerkraut or kimchi. If not as long as you have your appendix eating a variety of FODMAP foods as long as your digestion is fine and stay away from gluten.

      Be careful with Cassia since it can have elevated coumarin. Ceylon cinammon is better and has antimicrobial properties, so does the myrrh. Aloe can cause loose stools because of aloin. Georges Always Active dows not have any of the laxative effects associated with it.

      It is possible that the probiotic you were taken was mislabeled and instead of B. subtilis it was Eikenella corrodens. Nonetheless, both can cause issues for some people.

  11. Shocking to see so much bull in one blog post. Unlike Bruce, I do not work for any probiotic company. He is completely correct about the safety of probiotic strains of Bacillus subtilis. Saccharomyces boulardii is a bigger risk, and even that pretty much harmless. Like E. coli, most strains of Bacillus subtilis are beyond harmless and in fact often quite beneficial. I found it amusing you don’t give Bacillus subtilis the same level of objectivity you give E. coli. You should tell the countless eastern Japanese that eat natto for breakfast every single day what a risk they’re taking.
    I’d also like to know where got your number of only 10,000,000 cfu per large serving of natto. Most the the sources I’ve found say its around 5,000,000,000 PER GRAM. That’s five trillion per gram, not ten million per large serving.

      • http://www.ncbi.nlm.nih.gov/pubmed/17190098
        9.7+/-0.1 Log cfu/g
        10^9.7=5011872336 cfu/g

        http://maxwellsci.com/print/ajfst/v7-704-708.pdf
        These experiments in culturing natto resulted in natto with 3.7*10^9 to 4.1*10^9 cfu/g. That’s 3,700,000,000 to 4,100,000,000 cfu/g slightly lower, but still many orders of magnitude higher than

        I don’t have access to Koch and Sonenshein’s books, (which from your link, seem to have nothing but praise for Bacillus subtilis,) but I would be interested in looking at the primary source as opposed to a poorly scanned secondary and possibly tertiary source of an FDA document.

        What you’re doing here is just fear mongering to sell your book.

        • Ok let us say that it is 3 billion CFU per gram of natto. Some of the endospores of the bacteria would be inactivated due to stomach acid (the same as if you took a supplement.) Most B. subtilis that we come into contact anyway are either eliminated by stomach acid or pass right through us without germination.

          B. subtilis is widely distributed throughout the environment, particularly in soil, air, and decomposing plant residue. It has shown a capacity to grow over a wide range of temperatures including that of the human body (Claus and Berkeley, 1986). However, B. subtilis does not appear to have any specialized attachment mechanisms typically found in organisms capable of colonizing humans (Edberg, 1991). Given its ubiquity in nature and the environmental conditions under which it is capable of surviving, B. subtilis could be expected to temporarily inhabit the skin and gastrointestinal tract of humans, but it is doubtful that this organism would colonize other sites in the human body (Edberg, 1991).”

          The problem with the bacteria is not the CFU amount consumed, the issue stems from the Bacillus subtilis itself in its possibility to cause intestinal issues if your immune system is weakened.

          http://www.epa.gov/biotech_rule/pubs/fra/fra009.htm

          • The issue of infection from a compromised immune system can be said of just about any bacteria. Also, that government webpage you’ve quoted fails to make a distinction between different Bacillus subtilis strains. If that did that with E. coli I could make E. coli nissle look like the worst bacteria ever. Shoot, there might be a horrible toxic strain of Bacillus subtilis out there somewhere. That’s not going to stop me from scarfing down natto constantly.

            I say again, you are fear mongering for the sake of selling books and getting amazon commissions.

          • You are correct even Lactobacilus acidophilus can cause opportunistic infections if given the chance, but are a lot easier to eliminate then most endospore producing bacteria. Eat as much natto as you would like, all I am doing is trying to provide the other side to a HSO that everyone claims is perfectly safe.

  12. I work as an educator for Garden of Life. B. subtilis and “Primal Defense” have gained a cult following and are recommended by many experts and researchers. This is because this particular strain is OFTEN able to modify bowel ecology in favorable ways when other lacto/bifido strains have been tried repeatedly and symptoms persist. To say that plantarum has all the same features is absurd. It’s like saying a hammer can do all the same things as a jackhammer can do because they’re both made of metal and both can be used as a mallet.

    B. subtilis produces MANY compounds which are not produced by common lactic acid bacteria. Many byproducts of subtilis metabolism are actually alkaline products, by the way. Soil bacteria should be considered more of an anti-infective than a classical “probiotic” and as such it should be used with care.

    Technically Primal Defense is the best selling probiotic of the last decade and remains in the top 25 probiotic formulations of the industry. As this blog noted many experts and researchers (such as Chris Kresser and Natasha McBride) will attest that the strain B. subtilis is uniquely effective. This doesn’t mean it is always the best therapeutic agent for all people in all scenarios.

    Over the years there have been dozens of smear campaigns against B. subtilis and Primal Defense mostly coming from competitive probiotic vendors trying to influence sales.

    One of my co-workers in the field sent me a link to this blog. I saw the title and I yawned and figured right away before even reading this blog post that it would be more of the same old points:

    1) Spore-forming” microorganisms are supposedly horribly frightening. Of course the fear mongers never mention that spore forming microbes are all around us every second of every day and that human exposure to them is constant.

    2) I figured this blog would discuss the case study from Italy about the 73 year old who was found to have B. subtilis in the bloodstream. The fear mongers have gotten A LOT of mileage out of this one. One would think that if B. subtilis were so deleterious to human health then you wouldn’t have to go back nearly 20 years to find a single anecdote of harm. And even then you can only find it in people who are on death’s door. Garden of Life sells over a million bottles annually and we’re just one single supplier among many that distribute this strain all over the world! Where’s all the evidence of harm? (This blogger had to dig through papers from the 80’s just to find any additional sentinel events -and those were not deaths. )

    3) And of course usually the fear mongers will try to convince people that B. subtilis is like anthrax’s cousin. Of course lay people who have never studied biology will think that the two species are close relatives and that surely it’s a pathogenic strain just by association.

    I found it funny that the author recommends colloidal silver as part of an anti-microbial protocol. A red flag that someone is failing to use critical thinking and is instead letting their confirmation bias guide them.

    Silver is a great anti-septic such as in a catheter or as a gel applied to keloid scars — but it is NOT an antibiotic and worthless for intestinal infections. There is absolutely no evidence that colloidal silver has ever been successful for any internal infection. not even in an animal model. Go look around PubMed or Medify and you will see. Colloidal silver makes our whole industry look stupid.

    Hope this helps.
    -Bruce

    • Dear Bruce,

      I am glad you were honest that you stated your bias in the beginning. You work for GOL therefore you have every right to defend PD.

      HSO’s exist everywhere you are correct. Some are more benign that others. Brevibacterium linens, for example, lives on our feet and produces odor. We do not however want this bacteria in our lungs or colon where it does not belong.

      Bacillus subtilis is not part of the native gut flora for most people. Consumption of natto is one way to introduce the bacterium to the colon. No perfect bacteria or flora exists for anyone. It is a lot easier to eliminate rogue Lactobacillus acidophilus then most HSO’s.

      You are correct that I did use alarmist tactics, comparing Bacillus subtilis to Bacillus anthracis. The same could be said about the difference between E. coli nissle and E. coli 0157:H7. The main difference between the two species is that E. coli nissle is a lot less harmful compared to Bacillus subtilis if your immune system ever goes south.

      I did use a 1980 study you are correct. I also used a study from 2012: http://www.ncbi.nlm.nih.gov/pubmed/22918867, why did you pick and choose?

      I raise another question for discussion. Why did GOL drop Bacillus licheniformis from its PD culture? Did GOL drop it because it is associated with so many infections?

      Silver does not enter the bloodstream you are also correct and is a poor systemic antimicrobial agent. But why would it not work in the gut? If it works through direct contact on the skin and even in embedded medical devices IE g-tubes and endotracheal tubes, why would it not work through direct contact in the gut? You swallow the silver, and it passes through your digestive tract. Granted minute parts of it become embedded in the digestive organs, and it does take time for it to be eliminated.

      I also raise this for discussion: http://www.nature.com/news/silver-makes-antibiotics-thousands-of-times-more-effective-1.13232

      I look forward to your rebuttal.

      John

      • you started by saying that HSO’s exist everywhere. And that’s true. Especially for subtilis. It is ubiquitous in natural environments. It is measurable on virtually every surface that has come into contact with soil. (…so food, and all that.)

        Then you claimed it is NOT part of native gut flora for most people.

        Which doesn’t make intuitive sense to me

        I believe you were the one who cited Hong’s paper from 2009.
        Here is the full paper: http://sporegen.com/pdfpapers/Gut%20microbe/Hong2009.pdf

        here is the conclusion from the paper YOU cited:

        “This study reinforces a growing view that B. subtilis and probably other species have adapted to life within the GIT and should be considered gut commensals rather than solely soil microorganisms”

        ….so do you have any evidence to back up your claim that this ubiquitous strain is NOT a commensal strain?

        I would need evidence to back up your claim that B. subtilis is not native flora.

        Now let us move on to the question of safety.

        I was unimpressed with the paper you cited from over 30 years ago that implicated B. subtilis. This is partly because the tools back then that were employed were not near as good at identifying the exact species within a complex genus like bacillus. (they didn’t have PCR analysis). Back in those days people made observations about what they THOUGHT was B. subtilis but actually turned out later to be a different species. So the sentinel events in the 80’s that were cited may not have even been related to the B. subtilis strain that is in PD!

        And as far as the one other paper you cited from 2012 – it is even weaker evidence of B. subtilis being a bad guy.

        Here is a quote from the 2012 paper: “Species of the genus Bacillus are a common laboratory contaminant, therefore, isolation of these organisms from blood cultures does not always indicate infection. In fact, except for Bacillus anthracis and Bacillus cereus, most species of the genus Bacillus are not considered human pathogens, especially in immunocompetent individuals.”

        and of course the entire paper is really just a single case-report… and the guy didn’t die. ….and THIS is your big smoking gun that shows B. subtilis to be “not worth the risk”?

        Well if that’s how you feel let’s discuss other LAB strains that have extremely rare adverse events:

        The most studied strain in the world is L. rhamnosus.

        If you go to L. rhamnosus wikipedia page you will see the following text:

        “L. rhamnosus has been discovered to be pathogenic in rare circumstances, primarily involving those with a weakened immune system or infants.[1]”

        —-or how about the 2010 review of seventy-two different papers and here is the quote:

        “There were 20 case reports of adverse events in 32 patients, all of which were infections due to Lactobacillus rhamnosus GG or Saccharomyces boulardii; the risk factors included central venous catheters and disorders associated with increased bacterial translocation. There were 52 articles reporting 53 trials in which 4131 patients received probiotics. Most trials showed either no effect or a positive effect on outcomes related to safety (eg, mortality and infections).”

        So would YOU say that due to these rare events reported in the literature that Lactobacillus and Sachharomyces are “NOT WORTH THE RISK”?

        —as to your question of why PD formulation was changed to remove lichenformis I must say that I did not work for the company back then but I think it was for a variety of reasons some of which were about dealing with perceived fear and also logistics/cost/availability.

        I do think B. subtilis is a better supplement than B. lichenformis —but I haven’t poured through the literature on lichenformis. I will tell you that I’ve met literally hundreds of people over the last five years that implore our team to resume manufacturing the original formula because of their anecdotal responses to the original formula.

        Now let’s move on to colloidal silver. The reason it won’t work in the lumen of your intestine is because the concentrations are ridiculously low once it is ingested.

        Sure, silver kills pathogens in a petri dish at high concentration.
        ….the question is can you really get that kind of accumulation in the lumen of your intestine, or in the bloodstream or lymph? or intracellular?

        once you swallow a solution of 10ppm or even 1000 ppm it is going into a much bigger volume of digestive fluids and so therefore becomes very dilute. of course you could just swallow more silver but since it is a metal that is not involved in our biology this is dangerous.

        Bottom line: you will never have enough bio-accumulation of silver at the binding sites of infection for it to actually work. and that is why there isn’t a SINGLE study showing effectiveness. Not even an animal trial.

        Yes it can work in catheters or in bullet wounds because the concentrations are thousands of times higher than what could ever safely be ingested.

        the nature paper you cited is really all academic theory and all of it is demonstrated in test tubes. there is this quote from the article:

        “Collins says that he and his colleagues saw good results in mice using non-toxic amounts of silver. ”

        so I have no idea what “good results” means – probably just that the silver did not cause agryia in the mice. I must presume that If there WERE really impressive results from his mice study with silver/antibiotic compound then he would have published a paper on that!

        I’m so tired of test tube studies being used to bamboozle people in this industry. There are literally thousands of compounds which can degrade a cancer cell or a microbe in a test tube or petri dish. Vitamin C, Neem Oil, Raw Milk, IP-6, CLA, colloidal silver, etc etc etc. This does NOT mean they will ever be effective cancer drugs or potent antibiotics.

        here is a good review of the silver bullshit:
        http://www.sciencebasedmedicine.org/hi-ho-silver/

        So… I will wrap this up by saying that B. subtilis is in fact a commensal strain based on the evidence – and it possesses amazing therapeutic potential – and also that colloidal silver is utter bullshit without a shred of evidence that it will ever be useful as an antibiotic (but is a great antiseptic at mega-concentrations).

        Hope you have a good day!

        • If a “Native” gut flora exists it would depend on a few things:

          1. What part of the world you live in or visit
          2. The food you eat
          3. Your genetics
          4. If you were breastfed or born vaginally

          Everyone on this planet has a different gut flora. Different bacteria in different populations working either together or against one another makeup one’s flora. Some bacteria seem to be more beneficial, and some tend to cause more harm than good. Any bacteria can cause any infection at any point in time.

          Some people have picked up Bacillus subtillis from their environment. The Japanese and Nigerians acquired it from foods fermented with the bacterium. Other people might have acquired it from ingestion of soil as well. The amount that these native populations consume would be far lower than any probiotic supplement. The same could be said about most people with it as native flora. There were less then 100 people in the studies combined. In addition, the amount of spores and strains cultured in the ileum were very low (you would see that normally unless a person has SIBO.) Universal Ubiome results do not show it in most guts that were tested. There is a possibility that it is not tested for by Ubiome.

          It is a lot easier to eliminate an opportunistic Lactobacilli infection then it is a Bacillus infection. Bacillus can propagate by using endospores that give it a greater chance of survival against antimicrobials. So, therefore, the statement “So would YOU say that due to these rare events reported in the literature that Lactobacillus and Saccharomyces are “NOT WORTH THE RISK”?” is a poor argument.

          Silver is not absorbed well systemically of course or in correlation with antibiotics that work on a systemic basis. I have mentioned this already. Silver might improve the usefulness of Rifaximin however because it stays primarily in the gut and is used to deal with gut dysbiosis. Remember, the only way for argyria to occur is that ingested silver would have to be absorbed systemically and be excreted from the skin to turn it the color gray / blue.

          Most people would ingest enough Silver in a standard dose for it to work in the digestive tract until it is eliminated in the feces. Some amounts of silver would be accumulated in the digestive organs though, and the body would eventually eliminate it over time.

  13. What I’ve seen of B. subtilis is that it is a very good ‘ancestral’ species, a true SBO, that we should seek out. It’s in AOR Pro-3, but somewhat mislabeled as Bacillus mesentericus. (Former species designations that are now considered to be members of the species B. subtilis include B. aterrimus, B. mesentericus, B. niger, B. panis, B. vulgarus, B. nigrificans, and B. natto (Gibson, 1944 and Smith et al., 1946 as cited by Gordon, 1973). )

    From what I read, it’s non-pathogenic and very good.

    http://microbewiki.kenyon.edu/index.php/Bacillus_subtilis

  14. All of the probiotics that I recommend are in my book, Fix Your Gut, along with individual strains recommendations and purposes.

  15. I’m a bit worried now since I see that my expensive “Prescript-Assist Broad Spectrum Probiotic” contains “Bacillus Subtillis.” So what probiotics do you recommend?

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