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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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