The effect of vitamin D on airway reactivity and inflammation in asthmatic children: A double-blind placebo-controlled trial
- age 6-12 years
- Trial lasted only 6 weeks
which was probably not long enough to get ANY of the children to a therapautic level of vitamin D (> 30 to 40 ng)
See also VitaminDWiki
- Overview Asthma and Vitamin D
- Third study found that Infants needed 1600 IU of vitamin D – JAMA RCT May 2013
- Asthma attacks reduced in half if Vitamin D level higher than 42 nanograms – RCT May 2014
- Asthma Solved Naturally (book)
- Children with severe asthma had much lower levels of vitamin D – Dec 2011 so even more vitamin D is needed than for child without asthma