Purple carrots (usually orange or white inside) have even more beta carotene than their orange cousins, and get their pigment from anthocyanins, these pigments act as powerful antioxidants that protect key cell components, grabbing and holding on to harmful free radicals in the body. Anthocyanins also help prevent heart disease by slowing blood clotting and are good anti inflammatory agents. These originate from Turkey, and the Middle and Far East. See also the famous, unique, purple/black carrots of Cuevs Bajas, Spain