The importance of vitamin D has been documented in a host of studies. Adequate vitamin D is necessary for the body to absorb the essential minerals calcium and phosphorus, has been linked to cancer risk and other diseases.
A review of research supports a link between vitamin D deficiency and asthma. “Evidence suggests that vitamin D deficiency is associated with increased airway hyperresponsiveness, lower pulmonary functions, worse asthma control…” write the authors.
The review, published in Annals of Allergy, Asthma & Immunology, evaluated studies that were conducted between 1950 and 2009.
“We hypothesize that vitamin D supplementation may lead to improved asthma control by inhibiting the influx of inflammatory cytokines in the lung and increasing the secretion of interleukin 10 by T-regulatory cells and dendritic cells.” conclude the researchers