Vitamin D Deficiency

Vitamin D Deficiency Vitamin D is a fat-soluble vitamin, well more of a secosteroid than a vitamin, that occurs in 2 forms in humans: vitamin D3 and vitamin D2. Vitamin D3, the more common form, is made in the skin after exposure to sunlight. Vitamin D2, on the other hand, comes mostly from food and over-the-counter… Continue reading Vitamin D Deficiency