Colorado State University
Colorado State University: Vitamin D (Cholecalciferol, Calcitriol)
Learn how vitamin D is structured, synthesized and metabolized in the human body. Includes information on the health benefits of vitamin D and the effects of vitamin D deficiency.
National Institutes of Health
Facts About Dietary Supplements Vitamin D
A great resource on Vitamin D can be found here! Read about what it is, its sources, the recommend intake, Vitamin D deficiency, people who may need extra Vitamin D to prevent deficiencies, and health risks associated with too much...