wie kann ich mein mikrobiom verbessern — what can you do yourself?

Improving your microbiome through self-action is a popular concept, but the evidence base is often weak. What you can do yourself: 1) Eat a high-fiber diet (vegetables, legumes, whole grains) to feed beneficial bacteria. 2) Include fermented foods (yogurt, kefir, sauerkraut) for potential probiotic effects, though individual responses vary. 3) Avoid excess sugar, fat, and artificial sweeteners, which can reduce microbial diversity. 4) Exercise and stress management positively influence gut bacteria. 5) Use antibiotics only when necessary. A home test (e.g., MyBody-X) may give rough clues but is not diagnostic and often lacks validation. Interpreting results without a doctor can lead to unnecessary anxiety or ineffective measures. Evidence: Most recommendations are based on observational studies (mixed). Fiber effects have moderate human evidence, but personalized microbiome tests remain largely marketing. Caveat: Do not self-prescribe probiotics for serious conditions. For persistent symptoms (bloating, diarrhea), consult a physician.