Anthocyanins are a type of flavonoid that are commonly found in fresh fruits, berries and vegetables. Anthocyanins are that pigments that provide the plants a red, purple or blue coloring. Some of the common foods anthocyanins are found in are blackberries, blueberries, raspberries, cherries, cranberries, eggplant, red cabbage, plums and prunes. Including these fresh fruits and vegetables is sure to improve your overall health. A test tube study shows that the anthocyanins present in red raspberries play a minor role in the killing the cancer cells of the stomach and color.