How are DNA Stoffwechseltest and fatigue related?

DNA metabolism tests examine genes involved in energy production, methylation, and detoxification (e.g., MTHFR, COMT, SOD2). Some variants may theoretically affect mitochondrial function or nutrient metabolism, potentially contributing to fatigue. However, the evidence is weak: most links come from mechanistic studies or small associations, not robust clinical data. Fatigue is multifactorial – sleep, stress, diet, exercise, and medical causes (e.g., iron deficiency, thyroid issues) play a larger role. A DNA test alone cannot explain or treat fatigue. Results should be seen as a hint, not a diagnosis. Without accompanying biomarkers (e.g., ferritin, B‑vitamin levels), the predictive value is limited. Beware of exaggerated marketing claims.