Myths vs facts: VDR and Fruchtbarkeit

Myths vs facts about VDR and fertility: Consumer DNA tests often claim that VDR variants (e.g., rs1544410, BsmI) influence fertility. However, the scientific evidence is weak. Available data show only population frequencies, with no proven association with vitamin D levels or fertility outcomes. Vitamin D itself is important for reproductive health, but the effect of individual VDR polymorphisms is small and inconsistent. Many factors (age, hormones, lifestyle) dominate. Therefore, it is misleading to draw fertility conclusions from a VDR gene test alone. The evidence is unclear; marketing claims often exaggerate the significance.