Vitamin D supplementation associated with less severe asthma attacks

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Reprinted with the kind permission of Life Extension.

October 4 2017. Findings from a review and meta-analysis reported on October 3, 2017 in The Lancet Respiratory Medicineadd evidence to an association between vitamin D supplementation and a lower risk of severe asthma attacks requiring steroid treatment or hospital admission.

Researchers at Queen Mary University of London analyzed data from seven randomized, controlled trials that evaluated the effects of vitamin D supplementation in a total of 955 asthmatics treated with standard asthma medication. The team concluded that supplementing with vitamin D was associated with a 26% lower adjusted rate of asthma attacks that required treatment with oral or injectable steroids and a 50% lower risk of experiencing one or more attacks that required emergency department treatment and/or hospitalization. The protective effect of vitamin D supplementation appeared to be stronger among those who initially had low levels of the vitamin, however, the evidence was not definitive. No difference in serious adverse events was observed between participants who received vitamin D and those who received a placebo.

“These results add to the ever-growing body of evidence that vitamin D can support immune function as well as bone health,” stated lead researcher Adrian Martineau. “On average, three people in the UK die from asthma attacks every day. Vitamin D is safe to take and relatively inexpensive so supplementation represents a potentially cost-effective strategy to reduce this problem.”

Professor Hywel Williams, who is the Director of the National Institute for Health Research Health (NIHR) Technology Assessment Programme, commented that “The results of this NIHR-funded study brings together evidence from several other studies from over the world and is an important contribution to reducing uncertainties on whether Vitamin D is helpful for asthma – a common condition that impacts on many thousands of people worldwide.”

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One thought on “Vitamin D supplementation associated with less severe asthma attacks”

  1. Marc73 says:

    Great research. Much of the world has become vitamin D Deficient for one reason: We have been frightened away from sun exposure, which is natural way to produce vitamin D. If it weren’t for sun deprivation, there would be no vitamin D deficiency. A study from Spain showed that children exposed to the most sunlight have much lower risks of asthma than those who are least-exposed, with each hour of sun exposure predicting a decreased risk of the disease.
    One of the most recent studies on factors contributing to asthma showed living in a room without windows was associated with an increased the risk of asthma of 930%, and living in an area without adequate sunlight was associated with an increased risk of a 220% risk. Non-burning sunlight exposure is the key to preventing asthma.
    For more information, see Sunlight Institute website:

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