This page will give you some quick facts about Vitamin D
Vitamin D is also known as Calciferol. It is a fat soluble vitamin that can be found in food. It can also be made by the body by exposure to the sun's ultraviolet rays.
Fortified foods such as milk would be one source. Others sources include salmon, sardines, shrimp and eggs.
A person who is deficient in Vitamin D may develop Rickets or Osteomalacia.