warum nehme ich nicht ab test — when to see a doctor?

A test claiming to explain why you are not losing weight is typically a lifestyle DNA test (e.g., WeightLoss DNA). Such tests offer hints about metabolism type or sport genes, but the evidence is weak (marketing-level). Effect sizes of individual genes are small; your lifestyle, sleep, stress, and calorie balance matter far more. You should see a doctor if you are not losing weight despite a balanced diet and exercise for weeks, or if you have accompanying symptoms like fatigue, cold intolerance, cravings, digestive issues, or mood swings. Then thyroid function (TSH, fT3, fT4), blood sugar (fasting glucose, HbA1c), and possibly hormone levels (cortisol, estrogen/testosterone) should be clinically evaluated. A home test can give initial clues but does not replace medical diagnosis. Do not rely solely on genetic results – they are meant as motivation, not medical guidance.