Published Online: May 17, 2005
Published in Print: May 18, 2005, as The Zinc Effect

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The Zinc Effect

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Read more about the research of James G. Penland, a psychologist at Grand Forks Human Nutrition Research Center.

Increasing zinc intake improves the mental performance of adolescents, concludes a study conducted by the U.S. Department of Agriculture’s Human Nutrition Research Center in Grand Forks, N.D.

In a study of 209 7th graders in Grand Forks, daily consumption of 20 milligrams of zinc boosted students’ performance on visual-memory tests, word-recognition tasks, and activities requiring sustained attention, according to James G. Penland, the researcher at the Grand Forks center who led the study.

Vol. 24, Issue 37, Page 10

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