Selenium is an antioxidant that fights free radicals that damage cells and may lead to premature aging. Selenium’s antioxidant status also helps support the immune system naturally.

Selenium plays a notable role in supporting normal cardiovascular health. Selenium can benefit heart health by soothing oxidative stress and supporting normal circulation.

Selenium may be especially helpful if you have a weakened immune system or a history of cancer in your family. Taking high dose selenium supplements has been shown to potentially have anti-cancer effects.

Certain studies have investigated the use of selenium supplements for the treatment of dozens of conditions that range from asthma to arthritis, thyroid disorder and Alzheimer’s. The risk of these conditions increase as we age, but high-antioxidant intake and consumption of essential vitamins and minerals can help defend the body and may contribute to a longer life.

Observational studies have demonstrated that patients with chronic asthma may have lower amounts of selenium in their diets and therefore may be prone to deficiency. According to studies, when people with asthma take selenium supplements, they experience less asthma-related symptoms than those who take placebos.