Vitamin D3, Depot, 20.000 IE, 240 tabletter, Vit4everDescription Vitamin D contributes to the maintenance of bones and teeth. Vitamin D also contributes to the normal function of the immune system. Vitamin D is also called the sunshine vitamin, as the primary source of the vitamin is the sun. Vitamin D3 20,000 I. E. (500 g) Vitamin D3, sustained release, 500 g 240 tablets, Vit4ever. Nutritional content 1 tablet contains: Vitamin: Vitamin D3: 500 g Ingredients Vitamin D3 (cholecalciferol).