welche supplements brauche ich test — can a microbiome test help?

A microbiome test can provide insights into your gut bacteria composition, but it is not a reliable tool to directly determine which supplements you need. The claim that specific bacterial profiles indicate deficiencies in vitamins or minerals is poorly supported by evidence. Most commercial microbiome tests, including the MyBody-X Darmflora test, are marketed as lifestyle products, not medical diagnostics. They cannot detect pathogens and do not provide validated supplement recommendations. For evidence-based supplement guidance, established methods like blood tests (e.g., vitamin D, B12, ferritin) or genetic tests (e.g., MTHFR variants with homocysteine measurement) are far more informative. A microbiome test may offer general dietary advice (e.g., increase fiber), but not specific supplement dosages. Evidence grade: marketing/unclear. Caveat: do not rely solely on a microbiome test for supplement decisions – consult a doctor if you suspect a deficiency.