Background: Maternal intake of vitamin D in pregnancy is a potentially modifiable but
understudied risk factor for the development of asthma in children. Objective: We
investigated whether maternal vitamin D intake in pregnancy is associated with decreased
risks of wheezing symptoms in young children. Design: Subjects were from a birth cohort
recruited in utero with the primary objective of identifying associations between maternal diet
during pregnancy and asthma and allergies in children. A random sample of 2000 healthy …