Vitamin Supplements

How Much Selenium Do You Need?

Conclusive evidence of the need for selenium has emerged only in recent years, and our knowledge of this nutrient is still evolving. With some research indicating that elevated levels of selenium could help prevent certain types of cancer, we believe that the consumption of selenium at doses somewhat higher than the RDAs is important.

Optimal Daily Allowance

We recommend that all people consume 100 mcg of selenium per day. This nearly doubles the RDA for women and is almost a 50 percent increase for men.

While you could probably safely increase your selenium intake to 200 mcg per day, it’s unwise to go any higher because a few people may begin to experience adverse reactions at these elevated levels. Read the rest of this entry »

Selenium—in conjunction with an enzyme called glutathione peroxidase—acts as an antioxidant. In this role, it helps prevent oxidative damage in the body. In particular, selenium appears to work together with vitamin E to prevent injuries to cells. By consuming adequate amounts of both selenium and vitamin E, you can help your body fight off cell damage that can contribute to several serious diseases.

• Selenium appears to play a role in preventing heart disorders.
• Selenium seems to help prevent cancer.
• Selenium protects the body against the harmful effects of certain toxic substances, including arsenic, mercury, and copper. It appears to bind to these substances and render them less harmful. Read the rest of this entry »