Selenium is an essential mineral that may support the immune system, fertility, and cognitive function. It exists mostly in the skeletal muscles. Learn more.

Selenium deficiency refers to not having enough selenium in your system. Symptoms may include fatigue, muscle weakness, and infertility, among others.

Keep reading to learn more about selenium and why we need it, as well as 15 foods that contain this important nutrient.

Selenium is a trace mineral essential for thyroid and immune health. Learn the benefits, food sources, deficiency, recommended intake, and risks of too much selenium.

Selenium – a mineral found in many foods – could reverse the cognitive impact of stroke and boost learning and memory in aging brains, according to University of Queensland research.

Here are some of the most remarkable benefits of this powerful nutrient. Selenium acts as a powerful antioxidant Selenium protects the body’s cells from damage caused by free radicals. This ...

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 ...