Gut Health Supplements — and Why We Don't Make a Probiotic
THE SHORT ANSWER
This is the category with the widest gap between marketing and evidence, so we are going to be blunt about our own shelf. We do not make a probiotic. The things we do make that touch digestion — NAC, curcumin, zinc, magnesium — are not gut products with gut claims, they are nutrients with adjacent effects. The single highest-value change for most people's digestion is fibre from food, which we also do not sell.*
01Why we do not make a probiotic
Probiotics are strain-specific. That is the whole thing, and it is why most of the category is not worth what it costs.
A benefit demonstrated for one particular strain, at one particular dose, in one particular population, does not transfer to a different strain in a different capsule — even when both are called by the same species name on the front of the bottle. Lactobacillus rhamnosus GG is not interchangeable with another L. rhamnosus. The strain designation after the species is the part that carries the evidence, and it is the part most labels bury or omit.
Then there is the number nobody should be shopping on. CFU count is a measure of how many organisms were present, not of whether any of them do anything, survive the stomach, or colonise anything. A large CFU figure on a strain with no clinical evidence is a large number attached to nothing. We wrote that up in CFU is not the whole story.
We would need to license specific studied strains, verify them to strain level on every lot, and publish that verification. Until we can do all three, we would rather not sell you a bottle of unspecified bacteria.
02Fibre, which we also do not sell
Soluble and insoluble fibre do different jobs, and buying the wrong one is how people conclude that fibre made things worse. Soluble forms a gel and slows things; insoluble adds bulk and speeds them. If your problem is loose and urgent, adding bran is the wrong move.
We set the distinction out in the fibre distinction that decides everything. It is the single most useful thing on this page and it costs nothing.
03What we do make that is relevant — honestly labelled
Zinc. Has a genuine role in maintaining the integrity of the gut barrier, and shortfall shows up there relatively quickly. That is a nutrient-repletion argument, not a digestive-health claim. Watch the copper balance if you are taking it long term — the balance most get wrong. 15 mg or 30 mg.
Curcumin. Poorly absorbed on its own, which is why ours is C3 Complex with BioPerine — the piperine is there to address bioavailability, and we explained the mechanism in how to fix that. Note that piperine works by inhibiting the enzymes that clear compounds from your system, which is also how it affects some medications. Worth mentioning to a pharmacist if you take prescriptions.
NAC. Supplies the rate-limiting building block for glutathione. That is a systemic antioxidant argument, not a digestive one, and we are not going to stretch it into a gut claim. Here, and what it actually does.
Magnesium. Relevant here mostly as a warning. Oxide and citrate draw water into the bowel, which is exactly why they are used as laxatives. If you are taking magnesium for sleep and finding your mornings unpredictable, the form is the reason — glycinate is the one least likely to do it. The comparison.
04Things sold for digestion that we would not buy
Digestive enzyme blends, unless you have a diagnosed insufficiency. If your pancreas works, you are supplying enzymes to a system already producing them.
Anything promising to "heal the gut lining" in a fixed number of days. That phrasing is doing marketing work, not clinical work.
Prebiotic and probiotic combinations where neither the strain nor the prebiotic is specified to a level that lets you check anything.
05What actually changes digestion
Fibre from food, eaten consistently. Enough water to go with it. Regular meal timing. Sleep. Alcohol, which is worth being honest with yourself about.
None of those are products, and all of them outperform this category. If you want the nutrients above for their actual reasons, Digestive Health is here.
06What we can actually show you
We cannot show you a probiotic certificate, because we do not make one. What we can show you for everything we do make is the certificate for the lot in your bottle — identity, potency, heavy metals and microbials, tested by an independent laboratory and published on the product page. If we ever do make a probiotic, it will be strain-designated and verified to strain level, or it will not exist.
07Frequently asked questions
Do you sell probiotics?
No. Probiotic benefits are strain-specific, and we are not willing to sell unspecified bacteria with a large CFU number on the front.
Does CFU count matter?
Far less than the strain. CFU tells you how many organisms were present, not whether they do anything or survive to where they need to be.
Should I take digestive enzymes?
Only with a diagnosed insufficiency. Otherwise you are supplementing a system that is already producing them.
Which fibre should I take?
Depends on the problem. Soluble gels and slows, insoluble bulks and speeds. Getting that backwards is how people conclude fibre made things worse.
Can magnesium upset my stomach?
Oxide and citrate commonly do, by design. Glycinate is the least likely to.
Is curcumin safe with medication?
Ask a pharmacist. The piperine that makes curcumin absorbable works by slowing the enzymes that clear compounds from the body, which can affect how some drugs behave.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Persistent digestive symptoms deserve a doctor rather than a supplement.
