This is a ease into eating something most are not used to. Purple potatoes originated in South America. It's striking pigment is its nutritional life force, thanks to the antioxidant powerhouse anthocyanin, which is responsible for the purple and blue color of fruits and vegetables. Anthocyanin a flavonoid has been shown in studies to possess anti-cancer and heart-protective effects, as well as benefits like boosting the immune system and protecting against age-related memory loss. Research by the USDA Agricultural Research Service found that potatoes with the darkest colors have more than four times the antioxidant potential of those with lighter skin and flesh.