Research on vitamin D adds weight to the argument that we should all watch our vitamin D intake. As many as 60 percent of the UK population is vitamin D deficient and low levels have been linked to serious health problems in later life.Vitamin D is a fat-soluble vitamin which can either be ingested in food or manufactured by the body as a result of sunlight falling on the skin. People who feel they do not get enough sunshine often choose to supplement their diet with extra Vitamin D.Vitamin D is essential for healthy bones, as well as teeth, and is also thought to be important for a healthy immune system. Each high potency tablet provides a full 1000iu of vitamin D.Essential for healthy bones and teeth.Important for a healthy immune system.Providing 1000iu vitamin D per tablet.Product Specifications Typically per tablet:Vitamin D (1000iu) 25 µgEncapsulated With: Sunflower Seed Oil, Antioxidant: dl apha Tocopherol, Capsule Shell (Gelatin*,Glycerine).Disintegration time: Less than 1 hour.* bovine gelatinDosage:1 tablet daily with a meal