Selenium is an integral part of glutathione peroxidase, an enzyme that plays an antioxidant role in cells, and affect the function of vitamin E. It is very important to protect red blood cells and cell membranes from damage by free radicals. Glutathione peroxidase has also a role in protecting the skin from ultraviolet radiation.
Protein thyroxine deiodinase is also seleno-protein.
Selenoprotein P is a plasma glycoprotein of unknown function that contains 7-8 selenocysteines per molecule. Under normal conditions, about 65% of plasma selenium is placed in selenoprotein P.
It is important for the growth and health of hair and skin.
Selenium plays a role in maintaining the body's resistance to various diseases. It increases production and efficiency of white blood cells and protects them from the effects of free radicals that are produced during infection. Selenium increases the production of antibodies and participates in strengthening of the body against cancer.
Selenium is involved in maintaining normal liver function, protein synthesis and protect the body from toxic minerals such as arsenic, cadmium, mercury and lead. It plays an important role in the creation of male reproductive capacity and maintain the health of the eyes, hair and skin. Also involved in the metabolism of prostaglandins that control inflammation.