What is the most powerful superfood on earth? If you're basing your answer on which food has the highest concentration of antioxidants, then the answer is sumac bran. It doesn't get the buzz like acai or goji berries does, but the fact is that sumac has a higher ORAC value than any other food. In fact, it has over 3x the antioxidant content as acai and over 60x higher than blueberries.
But what is sumac bran exactly? It's a high-tannin variety of sorghum. Sorghum is a genus of numerous species of grasses, one of which is raised for grain and many of which are used as fodder plants either cultivated or as part of pasture. The plants are cultivated in warmer climates worldwide. Species are native to tropical and subtropical regions of all continents in addition to the southwest Pacific and Australasia. [Source: Wikipedia]
This spice is found in Middle Eastern food and has a taste that could best be described as a salty lemon. In fact, the saltiness taste is so strong, it makes an excellent sodium-free alternative in lieu of the real thing.
USDA Database for the Oxygen Radical Absorbance Capacity (ORAC) of Selected Foods, Release 2 - Prepared by Nutrient Data Laboratory, Beltsville Human Nutrition Research Center (BHNRC), Agricultural Research Service (ARS), U.S. Department of Agriculture (USDA) - May 2010