Evidence check: Fertility Check in the context of Abnehmen

A Fertility Check in the context of weight loss is often marketed as a combo test analyzing genetic markers for both fertility and metabolism. However, the provided knowledge sources contain no specific fertility test; they refer to DNA tests for nutrition (INFINITY DNA-Test) or skin aging. The claimed link between single gene variants (e.g., VDR, APOA5) and fertility is scientifically weak. While weight loss can improve fertility in overweight individuals, a direct genetic fertility check lacks clinically valid guidance. Evidence is mostly from GWAS with small effects, not randomized trials. Consumers should critically evaluate marketing claims: no genetic test replaces medical fertility diagnostics (hormone status, cycle analysis). The combination with weight-loss advice is plausible but unsupported by the cited sources. Safety note: Do not start supplementation or diet based solely on genetic test results; medical supervision is recommended.