What role does Glukose play in fertility?

Glucose plays a key role in fertility through insulin signaling and energy metabolism. Stable blood glucose supports oocyte maturation, sperm quality, and embryo implantation. Chronically high glucose, as seen in insulin resistance or diabetes, can cause oxidative stress, hormonal imbalances (e.g., elevated LH/FSH ratio in PCOS), and reduced egg quality. In men, hyperglycemia impairs sperm motility and DNA integrity. Evidence is mostly human-observational and mechanistic; direct RCTs on glucose and fertility are limited. Caveat: Single gene variants (e.g., PPARG, FUT2) have weak effects – diet and lifestyle are the main drivers. Blood glucose management via balanced carbs and exercise may improve fertility, but does not replace medical evaluation.