Institute professor, Wistar Institute, Philadelphia, and Emeritus professor of biochemistry in surgery, University of Pennsylvania School of Medicine, Philadelphia

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David Kritchevsky has conducted pioneering research on the role of fat and calories in the development of cancer. Having switched from organic chemistry to biochemistry,he wrote the first major book on the metabolism of cholesterol and has demonstrated the different roles of saturated and unsaturated fats in atherosclerosis. He is currently undertaking a comprehensive look at how dietary interactions among nutrients might relate to degenerative disease.

Kritchevsky has served as president of the American Institute of Nutrition and the Society of Experimental Biology and Medicine. His many contributions have most recently...

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