Contrary to earlier observational results, vitamin D supplements do not prevent severe asthma attacks in at-risk children, according to the first placebo-controlled clinical trial to test this relationship.
Compared to placebo, vitamin D has no benefit for severe asthma attacks, study finds
Contrary to earlier observational results, vitamin D supplements do not prevent severe asthma attacks in at-risk children, according to the first placebo-controlled clinical trial to test this relationship.