It is a fat-soluble vitamin, that is, stored in the fatty tissue of the body.
Vitamin D helps the body absorb calcium. Calcium and phosphorus are two minerals that you have to have for the normal formation of bones.
Vitamin D deficiency can lead to osteoporosis in adults or rickets in children.
The body produces vitamin D when the skin is exposed directly to the sun. Therefore, it is often called the “sunlight” vitamin.
Very few foods contain vitamin D naturally.
Fatty fish (tuna, salmon and mackerel) are among the best sources of vitamin D.
It can be very difficult to get enough vitamin D from food sources only. As a result, some people may need to take a supplement of this vitamin D.