Ceylon cinnamon is traditionally harvested from a tree that is native to Sri Lanka, formerly known as Ceylon, hence the botanical name of this health-beneficial spice. This cinnamon type is sweeter and more delicate than cinnamon cassia, the other main type of cinnamon.
It has a beneficial effect on glucose metabolism and body weight, and contains antioxidants called proanthocyanidins, which are also found in grapes and green tea. Unlike cinnamon cassia, Ceylon cinnamon does not contain coumarin – a natural plant chemical that is toxic to the kidneys and liver, and it might also be carcinogenic.