welche mikronährstoffe sollte man testen lassen — can a microbiome test help?

Which micronutrients should you test? Common evidence-based candidates include vitamin D, vitamin B12, ferritin (iron), magnesium, zinc, and folate – especially if you have symptoms or risk factors like a vegan diet, gastrointestinal issues, or medication interactions. A microbiome test (stool analysis) cannot directly measure micronutrient levels. It provides data on gut bacteria composition and potential dysbiosis, which may indirectly affect nutrient absorption. However, the evidence linking microbiome profiles to specific micronutrient deficiencies is weak and mostly correlational. Current medical guidelines (e.g., DEGAM, AWMF) do not recommend routine microbiome testing for healthy individuals. For assessing micronutrient status, blood tests remain the gold standard. A microbiome test might be considered as an additional tool in cases of suspected malabsorption or inflammatory bowel disease, but it should not replace conventional lab work. In summary: prioritize blood-based micronutrient panels; microbiome tests offer only indirect, low-evidence clues.