What role does Selen play in Fruchtbarkeit?

Selenium is an essential trace mineral that may influence fertility through several pathways. It is a key component of selenoproteins such as glutathione peroxidases, which protect cells from oxidative damage – critical for egg and sperm quality. Selenium also supports thyroid hormone metabolism, which regulates menstrual cycles and reproductive function. Epidemiological studies have linked low selenium levels to increased risk of miscarriage and male subfertility. However, the evidence is mixed: some randomized controlled trials show benefits of selenium supplementation on fertility outcomes, while others find no significant effect. The impact depends heavily on baseline selenium status; both deficiency and excess can be detrimental. Therefore, supplementation should only be considered after laboratory testing. The provided context did not contain validated studies on selenium and fertility; this answer is based on general medical knowledge. For personalized advice, consult a healthcare professional.