Vitamin D3 Supplementation in Pediatric IBD: Weely vs Daily Dosing Regimens

Children with IBD, aged 5 to 17, who are vitamin D insufficient or deficient will be recruited at the time of a routine clinic visit or lab draw that included a 25(OH)D level as part of clinical practice/standard care. Once consent and assent are obtained, the children who are 25-hydroxyvitamin D \[259OH)D\] insufficient or deficient will be randomly assigned to a daily or weekly dosing regimen using block randomization to ensure equal group size.