Asthmatic children with low blood vitamin D levels may have a greater risk of suffering severe asthma attacks.
A study followed more than 1,000 children with asthma for four years, and found those with vitamin-D insufficiency at the outset were more likely to have an asthma attack that required a trip to the hospital.
Reuters reports:
“When the researchers considered other factors -- including the severity of the children's asthma at the study's start, their weight and their family income -- vitamin D insufficiency itself was linked to a 50 percent increase in the risk of severe asthma attacks.”