Medically reviewed by Allison Herries, RDN Selenium supports thyroid and immune health, and its deficiency is rare but ...

If there’s one mineral that doesn’t get nearly enough attention in everyday health conversations, it’s selenium. It’s not as flashy as iron or calcium. It doesn’t trend like magnesium or zinc. But for ...

Selenium supports thyroid hormone production and immune system processes. Some studies link low selenium levels with higher thyroid disease risk, including thyroid eye disease. Studies using 100 ...