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    Editor's Note: USDA scientists analyzed antioxidant levels in more than 100 different foods, including fruits and vegetables. Each food was measured for antioxidant concentration as well as antioxidant capacity per serving size. Cranberries, blueberries, and blackberries ranked highest among the fruits studied. Beans, artichokes, and Russet potatoes were tops among the vegetables. Pecans, walnuts, and hazelnuts ranked highest in the nut category.

    USDA chemist Ronald L. Prior says the total antioxidant capacity of the foods does not necessarily reflect their health benefit. Benefits depend on how the food's antioxidants are absorbed and utilized in the body. Still, this chart should help consumers trying to add more antioxidants to their daily diet.

    Rank Food item Serving size Total antioxidant capacity
    per serving size
    1 Small Red Bean (dried) Half cup 13,727
    2 Wild blueberry 1 cup 13,427
    3 Red kidney bean (dried) Half cup 13,259
    4 Pinto bean Half cup 11,864
    5 Blueberry (cultivated) 1 cup 9,019
    6 Cranberry 1 cup (whole) 8,983
    7 Artichoke (cooked) 1 cup (hearts) 7,904
    8 Blackberry 1 cup 7,701
    9 Prune Half cup 7,291
    10 Raspberry 1 cup 6,058
    11 Strawberry 1 cup 5,938
    12 Red Delicious apple 1 whole 5,900
    13 Granny Smith apple 1 whole 5,381
    14 Pecan 1 ounce 5,095
    15 Sweet cherry 1 cup 4,873
    16 Black plum 1 whole 4,844
    17 Russet potato (cooked) 1 whole 4,649
    18 Black bean (dried) Half cup 4,181
    19 Plum 1 whole 4,118
    20 Gala apple 1 whole 3,903

    WebMD Public Information from the United States Department of Agriculture

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