Amenah Jafarey, Saeeda Baig.
Vdr gene polymorphisms: the independent link to asthma.
Pak J Med Dentistry Jan ;8(1):68-72.

Vitamin D is synthesized in the body via the action of UV light on the skin or obtained from dietary sources and supplements. It helps the body regulate calcium and phosphate levels, plays a critical role in the development of immunity against infectious diseases and several studies have suggested a link between vitamin D supplementation and prevention of colon, prostate and breast cancers. Low levels of serum 25-hydroxyvitamin D have also been implicated in the development of pulmonary diseases including asthma, chronic obstructive pulmonary disease, pneumonia and viral/bacterial upper respiratory tract infections.

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