What can the Fertility Check | Fruchtbarkeits-Test tell you — and what not?

The Fertility Check offered by MyBody-X analyzes genetic variants linked to hormone metabolism, follicle development, or sperm quality – for example, in the VDR (vitamin D receptor) gene. However, the provided context does not contain specific details about this test. In general, such tests can indicate tendencies (e.g., hints at vitamin D insufficiency or altered estrogen processing), but they are not a substitute for clinical fertility evaluation. The evidence for their predictive power is weak to moderate; many markers come from GWAS with small effect sizes. What the test cannot do: diagnose infertility, guarantee success of fertility treatment, or detect organic causes like blocked fallopian tubes or endometriosis. Lifestyle factors (diet, stress, sleep) dominate fertility outcomes. A non-risk result does not mean pregnancy is assured. Safety note: always discuss results with a reproductive specialist. Evidence: human-moderate (for individual markers) to unclear (for the overall test).