What to watch with Insulin and fertility?

Insulin plays a key role in fertility, especially in conditions like PCOS (Polycystic Ovary Syndrome). Elevated insulin levels can disrupt the hormonal axis, impair ovulation, and reduce egg quality. In men, insulin resistance may negatively affect sperm quality. However, the provided context does not contain specific studies on this topic. The evidence is based on general medical knowledge and mechanistic understanding, not on the given sources. Therefore, caution is warranted: individual decisions should always be discussed with a doctor. A blood glucose or HbA1c test can provide initial clues but does not replace comprehensive fertility diagnostics. The predictive value of DNA tests for insulin resistance is limited, as they only show genetic predispositions, not current metabolic status.