Study Comparing Two Vitamin D Supplements for Infants: Liquid Versus D-Strips

Vitamin D supplementation (400 IU/d) is recommended for all breastfed infants in Canada. Such recommendation is grounded in the fact that the prevalence of rickets in Canada is higher than desirable, likely due to low maternal-fetal transfer and low intakes postpartum. There is little data about adherence to supplementation in Canada, but one study shows that in primiparous mothers (n=1937) in Quebec, 58.1 % of those exclusively breast-feeding gave their infant vitamin D supplements in the first six months and 62.1 % of those feeding formula did not. For the Canadian situation, it is not clear if the modality of the supplementation is a barrier to providing the supplement. Thus the overall aim of this study is to test a new delivery system for parental preference and infant acceptance compared to a standard vitamin D supplement.