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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K9563-1

Endocrinologist Peter Havel checks a volunteer’s blood pressure in a study of diets high in fructose or glucose. These sugars affect production of leptin and insulin, hormones that regulate appetite.

Photo by Peggy Greb.

640 pixels wide: (k9563-1.jpg)

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Last Modified: 5/23/2006
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