Vitamin D: Vitamin, Hormone, & Protector
Discusses the historical incidents that led to the discovery of vitamin D. Recognizes the synthesis and function of various forms of inactive and active vitamin D. Describes the role that vitamin D may play in the physiological function of various systems. Lists the current guidelines for supplementation of vitamin D. Lists the blood levels that define the various categories of vitamin D deficiency and sufficiency. Identifies the best food sources of vitamin D.