Sleep: strains named in the research

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

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

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

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

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 …

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.

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

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

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.

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.

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…

Lactobacillus gasseri CP2305 has a substantial body of human clinical research for a single probiotic strain, with multiple randomized controlled trials and a meta-analysis in the index.

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.

Lactobacillus gasseri is a species naturally found in the human vaginal and gastrointestinal microbiota, and the papers indexed here reflect a broad species-level literature rather than a single defined strain.

Levilactobacillus brevis SBC8803 (also marketed as SBL88) has an unusual research profile centered on heat-killed rather than live cells, a preparation sometimes called a paraprobiotic.

Ligilactobacillus murinus (formerly Lactobacillus murinus) is a lactic acid bacterium found predominantly in the gut microbiota of rodents and other small mammals.

Limosilactobacillus reuteri DSM 17938 (formerly Lactobacillus reuteri DSM 17938) has been studied in multiple randomized controlled trials and at least one published meta-analysis examining infantile colic, episodes of p…

Bifidobacterium longum 1714 is among the strains studied under the term "psychobiotic," used for gut bacteria examined for potential effects via the gut-brain axis.

Lacticaseibacillus rhamnosus LR06 appears primarily as a component of multi-strain probiotic formulations, where it has been studied alongside other bacterial species in randomized controlled trials.

Lactobacillus casei Shirota is one of the most extensively studied probiotic strains, with a research history spanning several decades.

Lactobacillus fermentum (species-level entry, no specific strain designation) is a heterofermentative lactic acid bacterium found in fermented foods and the human gastrointestinal tract.

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…

Bifidobacterium infantis is an anaerobic bacterium native to the infant gut microbiota.