AcaiBerry from Natrol delivers Nature's ultimate super fruit with 1,000 mg per serving (in vegetarian capsules, too). Harvested in the Amazon rainforest from palm trees, the Acai berry has been used for centuries by indigenous tribes. Recently, scientists discovered that the very dark purple pigments in Acai berries feature anthocyanidins, antioxidants that contribute to its very high ORAC value. ORAC is a unique measurement of antioxidant potential.