Myths vs facts: Fertility Check | Fruchtbarkeits-Test and Abnehmen

Myths vs facts: Fertility Check and Weight Loss. Many direct-to-consumer tests claim that a DNA test can predict fertility or optimize weight loss. The reality: MyBody-X tests are for wellness, not medical diagnosis. Under German law (GenDG), predictive genetic testing for fertility requires a doctor. The SNPs tested have very small effect sizes – neither fertility nor weight loss is determined by a single gene. Evidence from RCTs shows that personalized nutrition based on genetics leads to only modest weight loss improvements; adherence and calorie balance matter far more. For fertility, genetic tests cannot diagnose conditions like PCOS or endometriosis. The evidence level is 'practice/marketing' – the science is still emerging and effect sizes are tiny. Consumers should not base medical decisions on these results. If you have fertility concerns or want to lose weight, consult a healthcare professional. The tests can be a nudge, but not a solution.