Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
Search in posts
Search in pages

Oxygen Radical Absorbance Capacity

Oxygen Radical Absorbance Capacity

Oxygen Radical Absorbance Capacity (ORAC)

Oxygen Radical Absorbance Capacity (ORAC) is a method of measuring the antioxidant capacity of a food.

Correlation between the high antioxidant capacity of fruits & vegetables, and the positive impact of diets high in fruits & vegetables, is believed to play an important role in the Free-radical theory of aging. The ORAC assay evaluates “free radical scavenging activity against the peroxyl radical” or the antioxidant capacity of foods and supplements. It is important to critically examine ORAC values because although ORAC does provide helpful information when comparing the antioxidants in various products, companies may intentionally mislead consumers.

A red grape will have a lower ORAC value than the red grape powder not because of nutritional differences, but because of the difference in moisture. With this distinction in mind, consumers must note that a liquid dietary supplement’s ORAC value should not be compared to a powder dietary supplement’s ORAC value. Likewise, the value for food is measured per 100 grams while the value for supplements is often measured per gram. We encourage consumers to pay attention to the measurements of the ORAC value as well as the type of supplement measured in order to reach more accurate results of the antioxidant level.

USDA data on foods with high levels of antioxidant phytochemicals
Food Serving size Antioxidant capacity
per serving size
Cinnamon, ground 100 grams 267,536
Aronia black chokeberry (Aronia melanocarpa) 100 grams 16062
Small Red Bean cup dried beans 13727
Wild blueberry 1 cup 13427
Red kidney bean cup dried beans 13259
Pinto bean cup 11864
Blueberry 1 cup (cultivated berries) 9019
Cranberry 1 cup (whole berries) 8983
Artichoke hearts 1 cup, cooked 7904
Blackberry 1 cup (cultivated berries) 7701
Prune cup 7291
Raspberry 1 cup 6058
Strawberry 1 cup 5938
Red Delicious apple 1 apple 5900
Granny Smith apple 1 apple 5381
Pecan 1 oz 5095
Sweet cherry 1 cup 4873
Black plum 1 plum 4844
Russet potato 1, cooked 4649
Black bean cup dried beans 4181
Plum 1 plum 4118
Gala apple 1 apple 3903

Author: Life Enthusiast
  • No products in the cart.
  • No products in the cart.