We all know the importance of eating a healthy diet, exercising, getting sufficient sleep, and sunbathing with caution. Still, life is not always that simple, and even if we stick with the official guidelines for healthy living, it can often be challenging to get adequate amounts of the essential nutrients. Nonetheless, supplements are useful as compensation for these shortcomings. In fact, the use of such products can be compared with plant fertilizers that make plants look healthy, flourish and thrive.
Selenium is a trace element that is found in all the cells of the body. An adult contains around 10-15 mg of selenium with the largest concentrations being found in the liver, kidneys, thyroid gland, sexual gland (gonads), and semen. Selenium supports over 30 different selenoproteins that have a number of different functions. Among these are five glutathione peroxidases (GSH-Px) that function as antioxidants, and three deiodinases that regulate the metabolism. Of all minerals, selenium is the one that holds the greatest antioxidant potential. It works in close collaboration with vitamin E to prevent oxidative damage to cell membranes, lipids, and DNA. Selenium and sulfur bear great chemical resemblances, but sulfur is not an antioxidant and has other functions in the body.