This vibrantly purple sweet potato, locally grown in Hawaii, is rich in flavor and nutritious. Okinawan Purple Sweet Potatoes. Known for being a superfood rich in antioxidants, known as anthocyanin is the pigment that is responsible for the brilliant purple color of the flesh.
The Okinawan sweet potato variety originated in South America and was brought to Japan in the 1600s, with the first plantings in Okinawa. These purple tubers were brought to Hawai‘i with Japanese sugar plantation workers in the early 1900s and have since become a local favorite.