The color purple marks a plant’s production of anthocyanins, a unique class of polyphenols that provide powerful health effects. Anthocyanins are the largest class of pigmented polyphenols in nature responsible for the colors purple, blue, and red. To date, 600 different anthocyanins have been identified from blueberries, lingonberries, grapes, eggplant and other similar-colored plants. Anthocyanins are proving to be a particularly interesting subgroup of polyphenols that yield outsized health benefits.
Anthocyanins and anthocyanidins are flavonoids, the class of plant-based compounds that have, in several large observational studies, been associated with benefits in mortality, reductions in heart disease, diabetes, and cancer.
Experimental models have suggested that anthocyanins:
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