Selenium deficiency refers to not having enough selenium in your system. Symptoms may include fatigue, muscle weakness, and infertility, among others. The amount of selenium in food sources is largely ...

Selenium is a nutrient that is naturally present in many foods, added to others and is also available as a dietary supplement in pill, powder and liquid form, explains Perri Halperin, a nutritional ...

Just 3 oz of tuna contains 167% of a person’s daily selenium needs. This recipe pairs a spiced, flavorful tuna steak with a nutritious salsa to offer a balanced meal. A serving of 3 oz of light ...

Selenium is a mineral found in the soil. It naturally appears in water and some foods. While people only need a very small amount, selenium plays a key role in your metabolism. Brazil nuts are are one ...

Taking high doses of selenium or vitamin E can increase the risk of prostate cancer, a new study found. Vitamin E supplements can raise the risk of prostate cancer by as much as 63 percent in certain ...

Selenium supplementation is associated with improvements in key thyroid measures in patients with Hashimoto thyroiditis who are not treated with thyroid hormone replacement therapy, research from a ...