Vitamin D3 Calciferol

Vitamin D is also called the "sunshine vitamin" because it is produced by the skin in response to sun exposure. It is a fat-soluble vitamin in a family of compounds that includes vitamins D-1, D-2, and D-3. Your body produces vitamin D naturally when it is directly exposed to sunlight. Since the body depends on sunshine for vitamin D production (main supply of 75-90%) and can hardly absorb it from food, deficiency can occur more quickly, especially in Central European winters. UV protection can also impair the absorption of vitamin D, so care should be taken to ensure adequate levels of the vitamin in the blood. Vitamin D is converted by the body into a hormone that controls a variety of bodily functions.