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Brightly coloured fruits and vegetables are rich in anthocyanins. This makes sense intuitively because anthocyanins offer pigmentation to plants. Blackberries are the most anthocyanin-rich foods, containing 89-211 milligrams per 100 grams.[1] Other foods that are rich in this phytochemical include red onions, blueberries, bilberries, red cabbage, and eggplant.[1] The ingestion of any of these food sources will yield a variety of phytochemicals in addition to anthocyanins because they naturally exist together.[2] The daily intake of anthocyanins is estimated to be approximately 200 milligrams in the average adult; however, this value can reach several grams per day if an individual is consuming flavonoid supplements.[2]