Selenium is an essential trace element for humans and animals. Nutritional requirements are generally met through the normal diet. However, there are regions of the world, noteably Finland and parts of China, that are low in soil selenium. In Finland, the entire country receives supplemental selenium through mandatory fertilization of all crops with selenate. [more]

Selenium has become widely recognized as one of the most important nutritional antioxidants. [more]

Animals fed diets elevated in selenium have repressed carcinogenesis in many different tumor models. [more]