Concerns about vitamin D have resurfaced in medical and scientific literature because the
prevalence of vitamin D deficiency in the United States, particularly among darkly pigmented
persons, has increased. The primary goals of this review were to discuss past and current
literature and to reassess the dietary reference intake for vitamin D in adults, with particular
focus on women during pregnancy and lactation. The appropriate dose of vitamin D during
pregnancy and lactation is unknown, although it appears to be greater than the current …