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You are here: Home / Chronic Illnesses / Vitamin D Deficiency / Possible Link with Vitamin D Deficiency & Asthma Severity

Possible Link with Vitamin D Deficiency & Asthma Severity

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A a study published in the May 1st issue of the American Journal of Respiratory and Critical Care Medicine  has revealed some new information on a possible link between vitamin D deficiency and allergy & asthma severity.  In this study the serum levels of approximately 600 Costa Rican children were linked to several indicators of allergy and asthma severity, including hospitalizations for asthma, use of inhaled steroids and total IgE levels.  Costa Rica is known to have a high prevalence of asthma.

Harvard Medical School & colleagues assessed each child participant for allergic markers (allergen-specific and general sensitivity tests), assessed their lung function & circulating vitamin D levels.

Researchers found that the children who had the lower vitamin D levels were significantly more likely to have been in the hospital for asthma the previous year.  These same children also “tended to have airways with increased hyperreactivity and were likely to have used more inhaled corticosteroids, all signifying higher asthma severity. These children were also significantly more likely to have several markers of allergy, including dust-mite sensitivity.”  Juan Celedon, MD, DrPH and Augusto Litonjua, MD, MPH, of Harvard Medical School said:

“To our knowledge this is the first study to demonstrate an inverse association between circulating levels of vitamin D and markers of asthma severity and allergy.  While it is difficult to establish causation in a cross-sectional study such as this, the results were robust even after controlling for markers of baseline asthma severity.  This study suggests that there may be added health benefits to vitamin D supplementation” said Dr. Celedón. Current recommendations for optimal vitamin D levels are geared toward preserving bone health, such as preventing rickets in children and osteoporosis in adults.”

“This study also provides epidemiological support for a growing body of in vitro evidence that vitamin D insufficiency may worsen asthma severity, and we suspect that giving vitamin D supplements to asthma patients who are deficient may help with their asthma control.  Whether vitamin D supplementation can prevent the development of asthma in very young children is a separate question, which will be answered by clinical trials that are getting under way.”

Source

Filed Under: Vitamin D Deficiency Tagged With: asthma, Vitamin D Deficiency

Reader Interactions

Comments

  1. Mike says

    May 6, 2009 at 7:07 am

    This is not the first study to show a relationship with asthma. Take a look at http://www.vitaminD3world.com for some good summaries of the data. They also have a good and free newsletter

    Reply
  2. Tom says

    May 8, 2009 at 3:57 pm

    That’s a very informative article, thank you!

    Reply
  3. acnetreatmentgal says

    September 8, 2009 at 6:57 am

    i have a mild Asthma which comes and go. my doctor just prescribes me with Corticosteroids to alleviate the symptoms of Asthma. i am still looking for a natural and alternative way to control asthma.

    Reply
  4. Kathleen Denier says

    October 12, 2009 at 9:25 pm

    Where would you find out lab tests numbers for Vit. deficiency? Mine was 1/2 of where it is suppose to be. is this dangerous? i also take the prescribed Vit. D tablet once a week.

    Reply
  5. Jamie says

    January 11, 2010 at 10:12 am

    Well, people who stay indoors always seem weaker and more prone to sickness, doesn’t matter if it is asthma or something else. We do need sunshine each day.

    Reply

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