Vitamin D and Asthma Link
Written By: Dr. Jan McBarren, Duke and The Doctor
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Published - Apr 23, 2011
Approximately 90% of vitamin D is synthesized by the skin through exposure to the sun. Once the first molecule of vitamin D is formed, it is then shuttled between the liver and kidney to ultimately produce vitamin D3, known as cholecalciferol. The vitamin D3 is then secreted into the blood stream and used by virtually every cell in the body. Vitamin D is necessary for many metabolic processes including supporting the immune system, cardiac health, bone and teeth mineralization, proper brain functioning and more. Vitamin D3 is necessary for virtually every cell in the body.
For years it was believed that as long as someone was exposed to the sun, vitamin D levels would be adequate. More than a decade of testing has demonstrated that most people are deficient. Increased exposure to the sun does not correct a vitamin D deficiency; in fact, excessive sun exposure should be avoided, as it is the leading cause of skin cancer.
Research was conducted through the International Study of Asthma and Allergies in Childhood on 45,000 children and teenagers in nine different cities and demonstrated the difference between climatic conditions and vitamin D levels. In northern cities where children are exposed to less sunlight, there is increased incidence of asthma. The data is compelling enough that researcher’s recommend that people living in northern latitudes take vitamin D supplements everyday. Common sense dictates anyone concerned about asthma should supplement with vitamin D3.