Can DNA Stoffwechseltest help with weight loss?

The short answer: No, current evidence does not support that a DNA metabolism test helps with weight loss. The core claim – that a genetic test can predict whether someone will lose more weight on a low-carb or low-fat diet – was refuted by the POINTS RCT (PMID 37813841) and a 2024 FTO meta-analysis. The Academy of Nutrition, ABESO (PMID 38474735), and the AHA (PMID 40079117) advise against such tests due to lack of validity and actionability. These tests often suffer from European bias in polygenic risk scores and ignore that weight loss is multifactorial: calorie balance, behavior, exercise, and psychology dominate. A DNA test can at best provide weak hints about individual metabolic pathways (e.g., FTO variants), but effect sizes are small and insufficient to personalize a diet. For weight loss, focus on evidence-based strategies: balanced diet, calorie deficit, regular physical activity, and behavioral change. A DNA test is unnecessary and may lead to false expectations or unnecessary expense. Safety note: Do not rely solely on genetic tests for dietary decisions; seek medical or nutritional advice for serious weight issues.