Vitamin D is a fat soluble vitamin that is obtained through sun rays and diet or as a supplement . It is normally believed that it can only be obtained from the sun.
It is a fat soluble vitamin. Orally is absorbed with fats through the intestine walls. The sun produces some vitamin D with the oils of the skin and then this is absorbed through the body.
There has been a lot of concern to over exposure to the sun, well Vitamin D does not need long terms of sun, just a few minutes. One of the points to note is that smog in cities reduce the vitamin D producing rays.
What it does for you
- Properly utilizes calcium and phosphorus necessary for strong bones and teeth
- Taken with vitamins A and C aids to prevent colds
- Helps with treatment of conjunctivitis
- Aids absorption of Vitamin A
- Many studies in humans, but not all, suggest that higher intakes of vitamin D or higher levels of vitamin D in the blood are associated with a reduced risk of colon cancer.
- Whether vitamin D is associated with reduced risks of other cancers, including breast, prostate, and pancreatic cancers, remains unclear.
Diseases due to deficiency
- Rickets (http://en.wikipedia.org/wiki/Rickets)
- Severe Tooth Decay
- Osteomalacia (http://en.wikipedia.org/wiki/Osteomalacia)
- Senile osteoporosis
Best natural sources:
- milk and dairy products
- fish liver oils
Who should supplement
- Dark skinned people living in colder/less sun climates
- Children that do not drink D fortified milk
- Night workers
- Nuns and others whose clothes/lifestyle keeps them away from sunlight
- City dwellers especially those in areas of high smog
For a more in depth article from the UK’s National Health please click HERE