Vitamin D helps regulate calcium deposits to the bones, and calcium removal from the bones.
Vitamin D, Ergocalciferol to be exact, is synthesized by the body upon exposure to ultraviolet light and synthesis decreases with age. Vitamin D fortified milk is the most common form of supplemental Vitamin D. Cod liver oil and other fish oils are also very good sources of Vitamin D. Vitamin D is a fat soluble vitamin and is stored primarily in the liver and adipose tissue. High, prolonged doses can be toxic. A Vitamin . B-1 Vitamin .