The research article is paywalled but it seems I have seen this summary from LifeSpan.io before. Apologies and I will delete if it is already posted.
A new study highlights a fatty acid produced by a particular genus of bacteria as a “natural statin* Exposure to B. uniformis gut bacteria increased LDL receptor activity in model mice, removing this harmful cholesterol from the bloodstream.
The effects were found to be due to pentadecanoic acid, a saturated fatty acid.
This molecule works on the same biochemical pathway as atorvastatin, which was found to be slightly stronger at the same dosage.
Bacteroides uniformis is not yet commercially available as a standard consumer probiotic product. While the sequenced type strain (ATCC 8492) and specific research isolates like CECT 7771 are sold exclusively as laboratory research cultures or quality control organisms, no consumer-facing probiotic containing this species is currently on the market.
However, the species is actively being developed as a next-generation probiotic (NGP) candidate. Several strains, including CECT 7771 and F18-22, have undergone safety assessments and preclinical trials showing benefits for metabolic health and inflammatory conditions. As of 2026, these are transitioning from laboratory discovery to pharmaceutical-grade clinical trials rather than over-the-counter supplements.
Also: Even though this probiotic is compared to atorvastatin as equivalent or slightly less effective, one wonders if this mechanism confers a benefit and risk profile different from that of atorvastatin.
The Best-Documented Prebiotics That Feed Bacteroides uniformis
Three compounds have the clearest research tying them to this species specifically. The table ranks the main candidates by how direct that link is, with the kitchen form that delivers each one.
Compound
Main food sources
Evidence for this species
Kitchen form
Alpha-cyclodextrin
Made from starch; sold as a powder
Most direct: mouse work plus one small trial in men
Stirred into a drink or yogurt
Beta-glucan
Oats, barley, mushrooms
Degraded by the strain in a 2024 colitis study in mice
Porridge, barley in soups and salads
Arabinoxylan
Wheat bran, rye, whole wheat
Wheat bran extract amplified the strain’s effects in obese mice
Rye bread, bran in baking
Resistant starch
Cooled potatoes and rice, legumes, green banana
Indirect; human trials mostly raised other microbes
Alpha-cyclodextrin is a ring-shaped soluble fiber that manufacturers produce from starch with enzymes. A 2023 paper in Science Advances (Morita et al.) described B. uniformis and its preferred substrate working together in mice and human males: the bacterium improved endurance exercise performance in mice, supplementing alpha-cyclodextrin was shown to increase the abundance of the strain, and a small trial in men reported improved endurance measures. The catch for meal planning is that it is not a food you cook with. It is a supplement or an additive in some functional food products, and the human data come from one small male cohort, so treat it as a research lead rather than a protocol.
Beta-glucan in oats and barley
Beta-glucan is a soluble fiber in the cell walls of oats, barley and mushrooms. A 2024 study in Microbiome found that B. uniformis degrades beta-glucan and, by doing so, helps promote the growth of Lactobacillus johnsonii, which raised indole-3-lactic acid and eased colitis in mice. It is a clean example of cross-feeding: one degrader opens the fiber, other beneficial bacteria profit, and the beneficial effect depends on more than one microbe.
This is the easiest compound to eat daily. The FDA allows a heart-health claim at 3 grams a day of beta-glucan from oats or barley, a handy reference point even though it was set for cholesterol, not for gut bacteria.