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Probiotics

Also known as Lactobacillus, Bifidobacterium, Saccharomyces boulardii

What it is: Live microorganisms intended to confer health benefits
What it does: Modulate gut microbiota composition and function, immune responses, and barrier integrity
Status: Widely used supplement
Evidence: Moderate. Extensive human data (strain-specific).
Uses: Digestive regularity; immune support; antibiotic-associated diarrhea

Caution. Effects are strain-specific; quality and viability vary between products.

Summary

Probiotics are live microorganisms that, when taken in adequate amounts, can modulate gut microbiota, immune function, and barrier integrity. Benefits are highly strain-specific, with some strains supported for antibiotic-associated diarrhea, IBS symptoms, or general digestive regularity. Product quality, storage, and CFU counts vary widely across brands.

Checked Jul 19, 2026.

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This entry summarises published information in plain language. It is not medical advice, a dosing recommendation or a substitute for a qualified healthcare professional. Many peptides are not approved for human use, and legal status varies by country. Check anything you rely on against primary sources.