ORAC stands for Oxygen Radical Absorbency Capacity. As well as a mouthful, an ORAC is a measure of the anti oxidant power of a food.
Generally, foods with high Oxygen Radical Absorbency Values contain more antioxidants than foods with lower values.
High ORAC value foods help combat oxidation from free radicals – a biological process which is an inevitable part of living.
Simply by breathing, digesting, sitting upright and running for the bus, you expend energy, burn oxygen and, therefore, create free radicals. Additional free radicals can be a result of environmental assaults like radiation, pollution, smoking and eating charred or toxin laden food, among other things.