Is Fitness | LifestyleCheck useful for Fruchtbarkeit?

Whether the Fitness | LifestyleCheck from MyBody-X is useful for fertility cannot be answered positively based on current evidence. The available context (e.g., AR gene variants, PPARA, CYP1A2) indicates that the tested SNPs have small, population-level effects and are not validated for diagnosing or optimizing fertility. The test is marketed as lifestyle inspiration, not a medical product. Fertility is a complex interplay of hormonal status, egg/sperm quality, age, lifestyle, and clinical factors. A standalone DNA test cannot capture this. Furthermore, the German Genetic Diagnostics Act (GenDG) prohibits using such tests for medical purposes without physician oversight. For fertility guidance, specific hormone and functional assessments plus medical consultation are essential. The LifestyleCheck may serve as a supplementary, non-decisive source. Evidence is therefore rated as 'marketing' or 'unclear'.