welche diät passt zu mir — when to see a doctor?

The question 'Which diet suits me?' is common, but the answer is nuanced. DNA tests like those from MyBody-X can offer clues about metabolic traits or intolerances – for example, by analyzing variants such as rs2802292 in the FOXO3 gene, which is associated with longevity but does not directly prescribe a diet. The evidence for genetically personalized nutrition is mostly mechanistic or derived from GWAS; robust clinical trials demonstrating clear benefit are lacking. You should see a doctor if you experience chronic digestive issues, unexplained weight changes, fatigue, or other symptoms. Medical advice is also essential if you have pre-existing conditions like diabetes, thyroid disorders, or eating disorders. Blood values (e.g., nutrient deficiencies, inflammatory markers) can only be reliably assessed through lab tests or clinical diagnostics – self-tests are not a substitute for medical evaluation. MyBody-X articles emphasize self-monitoring, but the products are often marketing-driven. Bottom line: Use genetic tests as inspiration, not as the sole basis for a diet. Consult a doctor if you have health concerns or are uncertain.