Is Insulin useful for Fruchtbarkeit?

The question of whether insulin is useful for fertility requires a nuanced answer. Insulin is a key metabolic hormone, and conditions like insulin resistance (common in PCOS) can impair fertility. Improving insulin sensitivity through lifestyle or medications such as metformin may indirectly support fertility. However, direct administration of insulin to enhance fertility is not supported by evidence and is not a standard treatment unless for diabetes management. The provided context lacks direct studies on insulin and fertility. Therefore, the evidence is rated as mechanistic/unclear. Caveat: Insulin is not a fertility drug; any fertility concerns should be evaluated by a medical professional.