Selenium: An essential trace mineral that functions largely in the form of proteins, called selenoproteins, which act as enzymes and help prevent damage to cells in the body by oxidants in the environment or those produced by normal metabolism.
The recommended dietary allowance (RDA) is currently 55 micrograms of selenium per day for adult men and women, 60 micrograms per day for women during pregnancy and 70 micrograms per day for women during lactation. Food sources of selenium include seafood; some meats (such as kidney and liver); and some grains and seeds.
Too much selenium (selenosis) may cause reversible balding and brittle nails, give a garlic odor to the breath, and cause intestinal distress, weakness and slowed mental functioning.
Deficiency of selenium causes Keshan disease, a fatal form of cardiomyopathy (heart muscle disease).
See also: Selenocysteine; Selenoprotein.
What is selenium? Selenium is a trace mineral that is essential to good health but required only in small amounts [1, 2]. Selenium is incorporated into proteins ...
Selenium IDE is a Firefox add-on that records clicks, typing, and other actions to make a test, which you can play back in the browser.
Library > Literature & Language > Dictionary ( sÃ„Â-lÃ„â€œ ' nÃ„â€œ-Ã‰â„¢m ) n. ( Symbol Se ) A nonmetallic element, red in powder form, black in vitreous form, and ...
Selenium is a mineral. It is taken into the body in water and foods. People use it for medicine. Most of the selenium in the body comes from the diet.
selenium. What can high-selenium foods do for you? Protect cells from free-radical damage Enable your thyroid to produce thyroid hormone Help lower your risk of joint ...