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Zinc is an essential mineral that has many functions in the human body. You can get your zinc from many foods, such as oysters (6 medium), 76.28 mg; beef, top sirloin, broiled (3 oz.), 4.97 mg; and peanuts, dry roasted (1 oz.), 0.94 mg. (Source: USDA Nutrient Database for Standard Reference, Release 14.) ARS scientists are studying how zinc gets transported throughout the body and how iron supplements might affect zinc absorption.

Photo by Keith Weller.

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