By Edwards: (NaturalNews) There are hundreds of types of cinnamon, but there are only four varieties used for commercial purposes. The cinnamon known as "true cinnamon" is Ceylon cinnamon. This is the only variety that many other countries refer to as cinnamon. Other varieties are known as cassia.
Although related, cinnamon and cassia are not obtained the same plant. They should be treated as separate foods, both from a nutritional and a health standpoint.