Can Selen help with Wechseljahre?

Selenium is an essential trace mineral that functions as a component of selenoproteins with antioxidant and thyroid-regulating roles. During menopause, oxidative stress increases and thyroid activity may shift—both areas where selenium could potentially offer support. Some observational and small intervention studies suggest possible benefits for hot flashes, mood swings, and thyroid function. However, the evidence is weak to moderate overall, and large randomized controlled trials are lacking. The benefit strongly depends on individual selenium status: if levels are adequate, extra supplementation provides no advantage and may even cause toxicity (selenosis). MyBody-X DNA tests for selenium metabolism genes (e.g., GPX1, SEPP1) are not clinically actionable due to small effect sizes and ancestry-specificity. Professional societies do not recommend routine selenium supplementation for menopausal symptoms. A balanced diet including Brazil nuts, fish, or eggs usually meets requirements. If deficiency is suspected, a blood test should guide supplementation. Bottom line: selenium may help in some cases, but it is not a magic bullet for menopause complaints.