Taking vitamin D could halve the risk of asthma attacks
A review of randomised trials suggests that taking an oral vitamin D supplement as well as standard asthma medication will reduce severe asthma attacks.
Asthma affects around 300 million people worldwide, with low blood levels of vitamin D linked to enhanced risk of attack. The potential role of vitamin D in asthma management has intrigued researchers as it may reduce upper respiratory infections, such as the common cold, which can exacerbate the condition.
Cochrane Library researchers found that giving a daily oral vitamin D supplement to people with mild to moderate asthma – meaning symptoms at least twice a week – reduced the risk of severe attacks requiring hospital admission or emergency department attendance from 6% to around 3%.
They analysed seven trials involving 435 children, and 2 studies involving 658 adults, all of...
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