Selenium

View the Fat-Fighting Foods Slideshow

Medical Definition of Selenium

Selenium: An essential mineral that is a component of an antioxidant enzyme, glutathione reductase, that is key in tissue respiration. Food sources of selenium include seafoods; some meats, such as kidney and liver; and some grains and seeds. Too much selenium may cause reversible balding and changes in the nails, give a garlic odor to the breath, and cause intestinal distress, weakness, and slowed mental functioning. Deficiency of selenium causes Keshan disease.


Quick GuideFat-Burning Foods in Pictures: Blueberries, Green Tea, and More

Fat-Burning Foods in Pictures: Blueberries, Green Tea, and More

Subscribe to MedicineNet's Weight Loss/Healthy Living Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Reviewed on 5/13/2016

Health Solutions From Our Sponsors