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Vitamin D source

Unlike with most vitamins, it is difficult for most people to get the recommended amount of vitamin D from foods. While the body makes vitamin D when exposed to sunshine, the ultraviolet energy in sunlight can cause skin cancer and premature wrinkles.

Reviewed last on: 3/7/2009
Linda Vorvick, MD, Family Physician, Seattle Site Coordinator, Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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