Tag: Oxygen radical absorbance capacity

In 2010, the USDA released a list of thousands of foods ranked by their Oxygen Radical Absorbance Capacity (ORAC) score, a measure of their antioxidant potential. Understanding what is ORAC in berries, and other foods, can help you maximize your intake of health-protective compounds.

First developed by scientists at the National Institute on Aging, the ORAC assay was once a widely used method to measure antioxidant capacity. The core of how ORAC works involves exposing a sample to free radicals and measuring its ability to absorb and neutralize them in a controlled laboratory setting.