Vitamin D
Also known as vitamin sun rays, it has been observed that children in tropical areas are less likely to deform bone and rickets than children living in temperate regions. Scientists attributed this to more tropical children exposed to sunlight than temperate regions. It is important for the health and safety of bones, and can be obtained by exposure to sunlight, because the skin contains a substance that turns to vitamin D when exposed to the sun, and scientists have called the name of vitamin D.
The importance of vitamin D to the body is that it can absorb calcium and phosphorus, then deposition in the teeth and bones, increases the body’s immunity and works to resist cancer cells.
Sources of Vitamin D
Vitamin D is found in milk and its derivatives of cheese and butter, and fatty fish such as salmon, tuna, cod fish, sardines, and whale liver oil. It contains high vitamin D Very, as about 150 grams of fatty fish contains all the body needs of vitamin D, in addition to eggs and mushrooms, and can be obtained from breakfast cereals supported, or in the form of drugs.
Causes of vitamin D deficiency
Vitamin D deficiency causes rickets, which is a curvature of the legs and affects the children, while adults suffer from osteoarthritis due to vitamin D deficiency.
- Do not be exposed to sunlight.
- Deficiency of prophitamin D in the skin in the elderly.
- Intestinal diseases cause poor absorption of vitamin D.
- Vitamin D collects in fat due to weight gain.
- Various diseases, such as liver and kidney diseases.
- Some medicines as epileptic drugs.
- Genetic diseases.
- The increase in vitamin D caused the deposition of calcium in the kidneys and heart and other tissues, and symptoms of headaches, nausea and diarrhea.
Vitamin D is normal in the body
The level of natural vitamin D in the body is 75 nanomol / l, where the body needs daily amounts of vitamin D by age and distributed as follows:
- From day to year: 400 IU.
- From 1 to 13 years 600 IUs.
- From 14 to 18 years of age 600 IU.
- It is recommended to expose the body parts to the sun, such as the face and arms in the morning, or after the age, for a quarter to one-third hours, and without the use of sun protection.