SelenoAiethionine is an amino acid containing selenium. Selenium is a nutritionally essential trace element for humans and animals. Selenium is a cofactor to about 10 selenoproteins in the body; the most important of these appears to be glutathione peroxidase (GPX). GPX uses glutathione to reduce hydrogen peroxide and thus help defend cells and plasma against free radical injury. GPX activity depends on an adequate supply of dietary selenium.
Selenium and vitamin E appear to have synergistic effects, since some signs of vitamin E deficiency may be alleviated by dietary selenium. Dietary selenium is generally well absorbed and utilized in the body. The richest food sources of selenium are seafood and organ meats, followed by muscle meats, cereals and grains, and dairy products. Fruits and vegetables are typically low in selenium, and low selenium status has been reported in vegetarians.
Seleno-Methionine, provided by Douglas Laboratories, contains 200 mcg of bioavailable selenium per capsule.