Overview
- Coverage underscores the gut’s role as a “second brain,” with dense neural connections influencing digestion, immunity, metabolism and mood.
- Recent reports highlight associations between 41 intestinal bacteria and sleep quality, including lower Faecalibacterium in people with insomnia tied to a more inflammatory environment.
- Mayo Clinic experts say probiotics can support digestion, concentration, sleep and immune function, though benefits are strain‑dependent and broader trials are still needed for mood and neurological claims.
- Lactobacillus reuteri Protectis is cited as widely studied, with proponents reporting improved bowel regularity and reduced abdominal discomfort, figures that come from advocates rather than independent consensus.
- Practical guidance includes FEAD’s view that normal bowel frequency can be once every three days and advice to use a knees‑above‑hips posture for easier evacuation, increase fiber, cut ultraprocessed foods, keep regular sleep and exercise, and seek clinical advice before starting probiotics.