What to watch with LCT and Fruchtbarkeit?

The link between LCT (lactase persistence) and fertility is not scientifically supported. LCT variants determine lactose digestion ability – a common trait, but they have no direct impact on reproductive capacity. Some lay sources or direct-to-consumer genetic test claims suggest a connection, e.g., via inflammation from lactose intolerance, but the evidence is weak or purely speculative. Lactose maldigestion can cause digestive discomfort, which might indirectly affect well-being, but not fertility in a medical sense. If you carry an LCT variant, focus on a balanced diet and consult a doctor for fertility issues. The predictive value of consumer DNA tests in this area is limited.