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Ingredient Type: Mineral

Also Known As: Se

Selenium is a chemical element with symbol Se and atomic number 34.  It is used and glassmaking and is a semiconductor, which was important in electronics before being displaced by Silicon.  Selenium is an important mineral for cellular function in animals and is consumed in the diet through nuts, cereals, and mushrooms.  It is required for proper immune and thyroid function.

Selenium is used in health supplements today to promote healthy immune, thyroid, and cellular function.


In the meantime see this National Institutes of Health article on selenium, the Mayo Clinic entry for selenium supplement, the entry for selenium, the Michigan Medicine Health Library entry for selenium, or the WebMD entry for selenium for more information.