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Vitamin D, aging, and the 2005 Dietary Guidelines for Americans

Mary Ann Johnson1, Michael G Kimlin

  • 1Department of Foods and Nutrition, Dawson Hall, Bldg. 1010, University of Georgia, Athens, GA 30602-3622, USA. mjohnson@fcs.uga.edu

Nutrition Reviews
|September 28, 2006
PubMed

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The skin plays a crucial role in the synthesis of vitamin D, a vital nutrient for various physiological processes in the body. Vitamin D is unique because it can be synthesized in the skin through a series of chemical reactions triggered by exposure to ultraviolet B (UVB) radiation from sunlight.
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Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
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Cancer Prevention02:59

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