Anthocyanins

Tart cherries contain the highest concentrations of anthocyanins 1 and 2 which help block enzymes associated with inflammation. Tart cherries contain significantly more anthocyanins than other fruits, including sweet cherries.16,18

16. Seeram NP, Momin RA, Nair MG, Bourquin LD. Cyclooxygenase inhibitory and antioxidant cyanidin glycosides in cherries and berries. Phytomedicine 2001;8:362-369.
18. Kim DO, Heo HJ, Kim YJ, Yang HS, Lee CY. Sweet and sour cherry phenolics and their protective effects on neuronal cells. J Agric Food Chem 2005;53:9921-9927.