Can MC4R help with Fruchtbarkeit?

MC4R (melanocortin-4 receptor) is a key regulator of energy balance and appetite. GWAS have linked certain MC4R variants (e.g., rs17782313) to obesity, and obesity can impair fertility through hormonal disruption, insulin resistance, and ovulatory dysfunction. However, there is no strong direct evidence that MC4R variants independently improve or worsen fertility. The link is indirect and mechanistic. Consumer DNA tests that include MC4R cannot provide meaningful fertility predictions. The effect sizes are small, and lifestyle, diet, and other genetic factors dominate. Anyone concerned about fertility should consult a reproductive specialist for comprehensive evaluation (hormones, semen analysis, etc.). MC4R testing alone is not a valid tool for fertility assessment.