People generally grind up cinnamon sticks instead of eating them, but chewing on cinnamon sticks is safe for most people. Some cinnamon contains high levels of coumarin, which can lead to liver problems and cause some drug interactions when taken in high doses.
Anyone who has liver problems or is taking medication should consult a medical professional, but chewing cinnamon sticks can be beneficial. Cinnamon contains antioxidants and is thought to lower cholesterol. This popular spice has been used as a cold remedy and to treat arthritis. It may also help with inflammation and regulate blood sugar for diabetics. Cinnamon sticks can also be used to flavor hot tea or as a garnish.