Selenium is an essential trace mineral it is a component of the powerful antioxidant enzyme glutathione peroxidase which helps to fight cell damaging free radicals selenium also helps recycle vitamin e which in turn helps to promote cell protection this formulation provides yeast free selenium as l selenomethionine it is the total diet or overall eating pattern that is most important in disease prevention and achieving good health it is a component of the powerful antioxidant enzyme gluta