The vibrant hue of the Okinawan sweet potato alone is enough to make us swoon this Valentine’s Day. Native to the States, this colorful variety is consumed widely on the island of Okinawa and also flourishes in Hawaii. Aside from their exotic background, these purple spuds are bursting with antioxidants – containing 150 percent more anthocyanin (the pigment responsible for their brilliant purple color) than blueberries,1 a hefty dose of vitamins A, C, and B6, and
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