date:Nov 15, 2018
form.
Selenium is a mineral that functions as an endogenous antioxidant. It is necessary for proper function of thyroid gland and critical to the structure of the antioxidant glutathione peroxidase, which protects membranes.
Too much selenium is toxic, however. Selenium is a soil-dependent trace mineral. Often the amount in the body is dependent on the soil content, which determines the amount of selenium in food. In the US, selenium deficiency is rare, but in Europe, the soil is not so rich