Vitamin D source
The body makes vitamin D when exposed to sunshine, but the ultraviolet energy in sunlight can also cause skin cancer and premature wrinkles. Unlike other vitamins, it is difficult for most people to get the recommended amount of vitamin D from foods. Supplements are widely recommended.
Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997-
A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.