CASSIA CINNAMON Cassia (Cinnamomum aromaticum, Cinnamomum Cassia), also known as Chinese cinnamon, is and comes from an evergreen tree native to southern China, Bangladesh, India and Vietnam. Sri Lankan cinnamon or Ceylon cinnamon is the best quality. Also popular are Padang cinnamon, Saigon or Amman cinnamon, regina cinnamon, Goan cinnamon, Malabar cinnamon, Java cinnamon and cayenne cinnamon. Cassia cinnamon should be consumed in small quantities because it is hypoglycemic and can produce low sugar that cause discomfort, dizziness and even fainting.