twice the selenium of some high street brands, well absorbed forms of selenium to maximise absorption,taste-free coated tablets,made to gmp standardssome selenium products provide just 100µg of selenium whilst nature\'s best provides 200µg in each one-a-day tablet. we use a combination of two well researched forms of selenium; selenomethionine and selenite, together with three important vitamins a,c and e at slightly higher levels than many high street equivalents.dietary intakes of selenium have fallen in recent years and official figures show that selenium intake for 80% of adults in the uk is now below the recommended nutrient intake (rni) level. the selenium content of foods has become depleted by processing and refining which removes much of this essential mineral from our foods.selenium is an essential nutrient which contributes to the protection of cell constituents from oxidative damage (used by the body to make antioxidant enzymes whose role is to neutralise ‚¬ëœfree radicals\', unstable chemicals which, in excess, can damage cells). it also contributes to the:,normal function of the immune system,normal thyroid function,the maintenance of normal hair and nails,normal spermatogenesisdietary intakes of selenium have fallen in recent years and official figures show that selenium intake for 80% of adults in the uk is now below the nutrient reference intake (nrv) level. the selenium content of foods has become depleted by processing and refining which removes much of this essential mineral from our foods. selenium is an essential nutrient used by the body to make antioxidant enzymes whose role is to neutralise ‚¬ëœfree radicals\', unstable chemicals which, in excess, can damage cells. it\'s no wonder that selenium is now one of the top selling supplements in the uk.