Vitamin D May Help Reduce Asthma Attacks, Cochrane Review Finds

The world's 300 million asthma sufferers could help reduce their risk of severe asthma attacks by taking vitamin D supplements as well as their standard asthma medicines, according to the findings of a review of international trial evidence.

The analysis - which covered trials in the United States, Canada, India, Japan, Poland and Britain - found that taking vitamin D tablets cut the risk of severe asthma attacks needing hospital treatment to around 3 percent from 6 percent.

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