Scientists reviewed nine trials testing Vitamin D supplements against a placebo on nearly 11,190 children, who have asthma.
They found that the one who were given a Vitamin D supplement over a 12 month period, reduced their risk of severe asthma attacks requiring hospital admission from 6% to 3%.
I recommend your buying Vitamin D3, the natural form of Vitamin D.
The lead author of this paper was Adrian Martineau, of Queen Mary University of London.

by Dr. Earl Mindell