Questions people ask about DNA Test Ernährung

DNA tests for nutrition claim to provide personalized dietary recommendations based on genetic variants (e.g., MTHFR, FTO, VDR). However, the scientific evidence is limited: most variants have small effects on nutrient metabolism and are not proven to predict deficiency or guide supplementation. Blood tests measure actual nutrient levels and are essential for clinical decision-making. Pregnancy, inflammation, or medications can further alter lab values. Direct-to-consumer tests often overstate their predictive power. Professional societies do not recommend routine genetic screening for nutritional guidance. A DNA test may offer clues about genetic predispositions (e.g., lactose intolerance), but it cannot replace medical diagnostics. Consumers should maintain realistic expectations and, if they have specific symptoms or suspect a deficiency, first opt for a blood test and consult a healthcare provider.