Evidence check: Cardio Risk Check | Herz-Kreislauf Risiko-Test in the context of fatigue

The 'Cardio Risk Check' or 'Herz-Kreislauf Risiko-Test' you mention is not directly addressed in the provided context. The available information covers individual genetic variants such as TCF7L2 (rs7903146) and FTO (rs9939609), which are associated with metabolic traits but not specifically with cardiovascular events or fatigue. Evidence for such polygenic risk scores is mostly population-based (GWAS) with small effect sizes (e.g., OR ~1.4 for TCF7L2). A direct link between this test and the symptom 'fatigue' is scientifically unsupported. Fatigue has numerous causes (sleep deprivation, stress, iron deficiency, thyroid dysfunction, psychological factors) that a DNA test cannot capture. The clinical utility of such tests for individual risk stratification or symptom explanation is questionable. Without specific studies linking the test to fatigue, the evidence must be rated as 'marketing' or 'unclear'. A proper fatigue workup should rely on established clinical parameters (blood count, inflammatory markers, sleep diary), not a genetic test.