Microbiome & Digestion
The gut bacteria ecosystem and its effect on immunity, mood and metabolism.
4.4Probiotics
The effectiveness of probiotics depends heavily on the specific strain and indication — there's no single universal 'best probiotic'.
4.5Prebiotic Fiber
The fraction of fiber not digested by humans that becomes food for beneficial gut bacteria — one of the simplest, best-documented ways to support a healthy microbiome.
4.1Postbiotics
The newest member of the 'biotics' family, formally defined only in 2021 — inanimate microorganisms and their metabolites, which don't need the bacteria to survive in order to work.
4.6Gut Microbiome
Trillions of bacteria, viruses, and fungi colonizing the gut aren't a passive "passenger" in the body — they're an active ecosystem influencing digestion, immunity, and even mood, with an increasingly well-documented, though still not fully mapped, role in whole-body health.