Evidence check: Longevity DNA Test in the context of Fruchtbarkeit

The question of a longevity DNA test in the context of fertility is scientifically challenging. Existing tests (e.g., MyBody-X Fitness VITALITY) analyze gene variants related to metabolism, inflammation, or nutrient utilization – but they do not measure direct fertility markers like AMH, hormone levels, or sperm quality. Some tested genes (e.g., FTO, BDNF, MTNR1B) have weak associations with BMI, stress regulation, or sleep, which could indirectly affect fertility. However, the evidence is mostly mechanistic or from GWAS, not from clinical fertility studies. Effect sizes are small and modifiable by lifestyle. A longevity DNA test does not replace medical fertility diagnostics. For specific fertility concerns, prioritize hormone and microbiome tests plus medical consultation. Marketing of such tests for 'longevity' is often exaggerated; clinical validation for fertility is lacking.