was ist ein genetischer ernährungstest — what can you do yourself?

A genetic nutrition test analyzes selected DNA variants (e.g., in SOD2, GPX1, GSTM1, APOA5) linked to metabolism, detoxification, or nutrient processing. The effects are generally small, population-dependent, and not causal – a single SNP does not determine your entire dietary needs. What you can do yourself: use the results as a prompt for mindful lifestyle adjustments, not as medical directives. For instance, a GPX1 variant may suggest higher selenium requirements, but evidence is moderate, and supplementation without deficiency is discouraged by guidelines (EFSA, DGE). High-dose antioxidants (vitamin E, β-carotene) have shown harm in RCTs (SELECT: +17 % prostate cancer risk). Products like MY FOODBOOK offer personalized recipes based on your DNA – this can be motivating, but the scientific support for disease prevention is weak. A separate TSH home test checks thyroid function but is unrelated to genetics. Bottom line: a genetic test can inspire healthier habits, but it does not replace medical advice or evidence-based nutrition. Remain critical of exaggerated claims.