Cinnamon, a spice is obtained from quills of Cinnamomum zeylanicum. Its production is carried out in Sri Lanka, China, India, Vietnam etc.
Its flavour is due to aromatic essential oils present in it. The chemical constituents which are present in Cinnamon are cinnamaldehyde, eugenol, beta-caryophyllene, linalool, ethyl cinnamate etc.
Cinnamon bark is used as spice in foods and is also used as a flavouring agent and condiment. As the essential oil contains anti-microbial properties, Cinnamon is used as preservative. It has anti-oxidant property and is also used as an insect repellant.

Some more Uses of Cinnamon :
So it is good to take Cinnamon in food to improve and maintain health.