Non-GMO 100% Vegan Dietary Supplement Prunus Cerasus 3% Anthocyanins 340 mg Per Capsule Tart Cherry Lab Verified Discussion: Tart cherries are commonly used in pies, cakes and tarts, and contain numerous nutrients, along with at least 17 antioxidants including anthocyanins and ellagic acid. Anthocyanins give cherries their distinct red color and have been studied for their possible health benefits, including joint health.