Vitamin D is unique in that it is considered both a nutrient and a hormone.
It is part of the group of nutrients that are responsible for the formation and maintenance of healthy bones. Vitamin D s specific role is to promote bone mineralization. It is essential in synthesizing enzymes in the mucous membranes, which are involved in the active transport of available calcium. It is crucial for normal growth in children especially for the normal growth of bones and teeth. In adults, vitamin D is utilized in maintaining a stable nervous system, normal heart action, and normal blood clotting.