Metabolic

Akkermansia muciniphila is a gut bacterium that naturally inhabits the mucus layer lining the intestine and has attracted substantial scientific interest as a potential next-generation probiotic.

Lactiplantibacillus plantarum (formerly Lactobacillus plantarum) is a well-characterized lactic acid bacterium found across fermented foods, the human gut, and diverse environmental niches.

Lactobacillus acidophilus is one of the most studied lactic acid bacteria, with research dating back decades documenting its ability to survive the harsh conditions of the gastrointestinal tract, including acid and bile …

Lactobacillus casei (species-level entry, undesignated strain) is a broadly studied lactic acid bacterium encountered across fermented dairy and non-dairy foods.

Bifidobacterium longum is a well-characterized commensal species found throughout the human gut, with a particularly studied role in early-life microbiome establishment.

Lacticaseibacillus rhamnosus, most widely studied as the GG strain, has an extensive research record, though the evidence base in this index is predominantly in vitro and animal-model work.

Faecalibacterium prausnitzii is a butyrate-producing commensal bacterium that is among the most abundant in a healthy human gut and has attracted significant research interest as a potential next-generation probiotic.

Lacticaseibacillus rhamnosus GG (LGG) is one of the most extensively studied probiotic strains globally, though the papers linked to this strain entry focus primarily on encapsulation technology and formulation stability…

Lacticaseibacillus casei (species-level entry, no specific strain designation) is a broad species grouping that includes well-studied commercial strains such as L.

Lacticaseibacillus paracasei (the species, without a designated strain identifier) is a broadly distributed lactic acid bacterium found in fermented foods and the human gut.

Bifidobacterium breve is a species commonly found in the human gut, particularly in breastfed infants, where it plays a role in fermenting complex carbohydrates including human milk oligosaccharides.

Clostridium butyricum is a spore-forming anaerobic bacterium capable of producing butyric acid through fermentation.

Bacteroides thetaiotaomicron is a dominant member of the healthy human gut microbiome and one of the most extensively studied gut commensal bacteria.

Lactobacillus johnsonii is a facultative anaerobic lactic acid bacterium originally isolated from the human vaginal microbiota.

Lactobacillus brevis is a heterofermentative lactic acid bacterium widely distributed in fermented food environments.

Lactobacillus helveticus is a lactic acid bacterium widely used in dairy fermentation and probiotic applications.

Bacteroides uniformis is a common anaerobic bacterium of the human gut microbiome, and a specific strain (CECT 7771) has attracted research interest for its metabolic effects in animal models.

Bacillus coagulans is a spore-forming bacterium studied as a probiotic candidate, in part because its spores exhibit heat and acid stability, a property studied in relation to survival through food processing and gastric…

Bacillus amyloliquefaciens is a spore-forming soil bacterium known primarily for its enzyme-producing capabilities and agricultural biocontrol applications — including suppression of plant pathogens and promotion of plan…

Bifidobacterium animalis BB-12 is one of the most extensively studied Bifidobacterium strains, with a research record spanning food science, gut physiology, and clinical settings.

Bacillus licheniformis is a spore-forming bacterium studied in veterinary and aquaculture applications.

Clostridium leptum is an anaerobic gut bacterium that belongs to a numerically significant group of microbes in the human intestine, often used as a biomarker in microbiome composition studies.

Bifidobacterium pseudolongum is a species found in the intestinal microbiota of various mammals, including rodents and swine, where it has attracted growing research interest as a potential probiotic candidate.

Bacteroides acidifaciens is a strict anaerobic bacterium naturally present in the mammalian gut microbiota.