Children with asthma with relatively low vitamin D levels in their blood 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 a lack of vitamin D were more likely to have an asthma attack that required a trip to the hospital.
For this study, researchers considered children with vitamin D levels of 30 ng/mL or lower to be insufficient in the vitamin.
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.”
[Source]
Chapter: Asthma :: 19 July 2010