Vitamin D status and association with gestational diabetes mellitus in a pregnant cohort in Iceland

Background: Vitamin D deficiency has been associated with an increased risk of gestational diabetes mellitus (GDM), one of the most common pregnancy complications. The vitamin D status has never previously been studied in pregnant women in Iceland. Objective: The aim of this research study was to evaluate the vitamin D status of an Icelandic cohort of preg- nant women and the association between the vitamin D status and the GDM incidence. Design: Subjects included pregnant women (n = 938) who...