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Wild Blueberries Shown to Fight Oxidative Stress
Date:11/30/2007

- USDA Study Examines Antioxidant Status Changes After Meals -

PORTLAND, Maine, Nov. 30 /PRNewswire/ -- USDA scientists recently concluded that eating Wild Blueberries and other antioxidant-rich foods at every meal helps prevent oxidative stress. (Journal of the American College of Nutrition, Vol. 26, No. 2, 170-181, 2007) This study advances antioxidant research by moving beyond the measurement of antioxidants in foods to actual examination of the performance of specific fruits against oxidative stress in the body. Oxidative stress is linked to chronic diseases and aging.

"We are confident that consumption of Wild Blueberries or other high antioxidant foods is going to be beneficial in fighting oxidative stress," said lead scientist Ronald L. Prior, Ph.D., USDA Arkansas Children's Nutrition Center. "It's not just what you eat but when you eat it that matters. Phytochemicals in foods have varying degrees of bioavailability and generally are cleared from the blood 2-4 hours after they're eaten. Ensuring that your body has a steady supply of antioxidant-rich foods can help combat oxidative stress throughout the day." The study also found that eating a meal with no antioxidants -- just carbohydrates, fat or protein -- lowers the antioxidant levels and causes oxidative stress. "You're deficit spending when you eat junk food. You need to continually consume antioxidant-rich foods to keep levels up for optimal health."

According to Dr. Prior, results from five separate clinical trials at four different institutions were combined in the analysis. During the trials, subjects ate Wild Blueberries, dried plums, cherries, grapes, kiwifruit, or strawberries. Affiliated research partners included the USDA Human Nutrition Research Center on Aging in Boston, Massachusetts, the USDA/ARS Western Human Nutrition Research Center at the University of California, Davis, and the Department of Food Science and Human Nutrition at the University of Maine. In a
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SOURCE Wild Blueberry Association of North America
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