Yeast infections

Lactobacillus crispatus is a lactic acid bacterium native to the human vaginal microbiota.

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 …

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.

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

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

Limosilactobacillus reuteri RC-14 has been studied primarily in the context of urogenital and oral health, often in combination with its companion strain L.

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.

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 rhamnosus GR-1 is among the most thoroughly researched probiotic strains for urogenital health, with multiple randomized controlled trials evaluating its oral use in relation to vaginal microbiota comp…

Streptococcus salivarius K12 is an oral probiotic strain with one of the broader clinical evidence bases in upper respiratory and oral health research.

Lacticaseibacillus rhamnosus Lcr35 (formerly Lactobacillus casei rhamnosus Lcr35) has been evaluated in several randomized controlled trials across distinct clinical contexts, including pediatric chronic constipation, va…

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

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

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…

Lactobacillus acidophilus LA-5 is a commercially used probiotic strain studied primarily for its survivability in fermented food matrices such as yogurt, cheese, and whey-based beverages.

Lactobacillus acidophilus NCFM is a well-characterized probiotic strain studied across a range of laboratory and animal model contexts.

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

Saccharomyces cerevisiae CNCM I-3856 is a probiotic yeast strain with multiple randomized controlled trials and a published meta-analysis focused on irritable bowel syndrome (IBS).

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

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.

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.

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

Cutibacterium acnes (formerly Propionibacterium acnes) is a slow-growing bacterium that is a normal resident of human skin, particularly in sebaceous (oil-secreting) follicles.