Selenium is an essential trace element, necessary for the formation of the antioxidant enzyme glutathione peroxidase (glutathione peroxidase), an important enzyme that works with other antioxidant factors to protect the body's cells from oxidative stress caused by free radicals.
It is incorporated into the body in a large number of vital proteins called selenoproteins. Selenoproteins participate in the production of testosterone, a hormone that is an important regulator of both normal and abnormal growth. Also, these proteins help regulate the function of the thyroid gland and play an important role in the immune system.
Selenium's action reduces the likelihood of heart and stroke episodes. Its strong antioxidant property in synergy with vitamin E, supports the normal function of the pancreas, liver, and immune system. Selenium is particularly useful for athletes, as it protects against muscle problems caused by free radicals after intense exercise.
The NOW Selenium contains 100 mcg of selenium per capsule, exceeding the daily requirement of the body for selenium.
Note: Selenium is contraindicated in people who live in areas with high selenium levels.