was kostet ein gen test — when to see a doctor?

The cost of a genetic test varies widely: direct-to-consumer tests like those from MyBody-X typically range from €50 to €200, depending on scope (e.g., nutrition, fitness, microbiome). However, these tests are not diagnostic and do not replace a doctor's visit. You should see a doctor if you have symptoms (e.g., unexplained fatigue, weight changes, digestive issues) or a family history of certain diseases. Test results often provide only hints, not diagnoses. For example, a fingerstick PSA level may be elevated, but that does not automatically mean prostate cancer – many benign causes exist. Similarly, the impact of single gene variants (e.g., MTHFR, FTO) on health is usually small and better assessed through blood biomarkers. The evidence for personalized recommendations from DNA tests is weak to moderate; many claims are marketing-driven. A doctor should always be consulted for abnormal results or health concerns to initiate further diagnostics (e.g., venous blood draw). Medical guidance is also essential for tests involving children or pregnancy.