Vitamin D. The good. The bad. The ugly.

Vitamin D.  Vitamin D molecule (http://www.vitaguide.org) Vitamin D:  Steroid hormone vitamin; Five forms of vitamin D discovered – D1–5. Two forms matter most to humans: Vitamins D2 (ergocalciferol) and D3(cholecalciferol). The active form of vitamin D in the body is called Calcitriol (1,25-Dihydroxycholecalciferol). Calcitriol: promotes the absorption of calcium and phosphorus from food in the […]