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Study Of Asthma Patients Finds No Benefit In Vitamin D Supplementation

November 5, 2015: 12:00 AM EST
Researchers have long wondered whether vitamin D deficiency led to other health problems for asthma sufferers. New U.S. research has determined that vitamin D supplementation does not reduce the severity or frequency of cold symptoms in patients with “mild-to-moderate asthma” any better than a placebo. The study involved 408 patients with insufficient or deficient levels of plasma vitamin D divided randomly into two groups, one of which received an initial 100,000 IU dose of vitamin D3, followed by 28 days of a 4,000 IU daily dose.
Loren C. Denlinger et al., "Vitamin D Supplementation and the Risk of Colds in Patients with Asthma", American Journal of Respiratory and Critical Care Medicine, November 05, 2015, © American Thoracic Society
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