What should I know about stoffwechselanalyse?

A Stoffwechselanalyse (metabolic analysis), such as a DNA nutrition test, examines genetic variants linked to metabolism and nutrient processing. It can offer clues, e.g., a slightly higher fasting glucose with certain MTNR1B variants, but effect sizes are small (~1.4 mg/dL). The test is not diagnostic, does not replace medical advice, and cannot guarantee weight loss. Evidence is mixed: GWAS-based but with small effect sizes and population-specific. Microbiome tests may provide additional insights but are not validated for children. A single cortisol measurement from a blood spot is insufficient to diagnose overtraining. Bottom line: The analysis can serve as a general guide but should always be discussed with a healthcare professional (e.g., a registered dietitian or endocrinologist). Focus on a balanced diet, regular exercise, and sleep – these have the strongest evidence for metabolic health.