Active Ingredients
Each tablet contains: Selenium (Yeast free l-selenomethionine) 100ug.
Warnings
Selenium is safe at the level people typically supplement (100-200 mcg); however,taking more than 900 mcg of selenium per day has been reported to cause adverse effects insome people.5 Selenium toxicity can result in loss of fingernails, skin rash, andchanges in the nervous system. In the presence of iodine-deficiency-induced goiter, seleniumsupplementation has been reported to exacerbate low thyroid function.6 Althoughmost research suggests that selenium prevents cancer, one study found an increased risk of atype of skin cancer (squamous cell carcinoma) in people taking seleniumsupplements.7 The National Academy of Sciences recommends that selenium intake notexceed 400 mcg per day, unless the higher intake is monitored by a healthcareprofessional.8 In a double-blind study of people who took 200 mcg of selenium perday for several years to prevent recurrences of skin cancer, the incidence of diabetes washigher in people who received selenium (9.7%) than in those who received a placebo(6.5%).9 While this difference was statistically significant, this finding shouldbe considered preliminary, since the study was not originally designed to test whetherselenium influences the risk of developing diabetes.
