In turn, both the single anthocyanin compounds (cyanidin, cyanidin glycosides, pelargonidin) and anthocyanin-rich extract alleviated the clinical symptoms of colitis, decreasing the expression of IL-6 and increasing the expression of Foxp3 in the colon tissues, and promoting Treg cell expansion [38,39,40,41]. Here, FOXP3 is linked to colitis.