Cassia cinnamon is a type of cinnamon prepared from the dried inner bark of an evergreen tree that grows in areas of southeastern Asia. Cassia is commonly known as Chinese cinnamon, and its scientific name is Cinnamomum cassia. Cassia essential oil, or cassia bark oil, is derived by steam distillation of the cassia bark, leaves and twigs.
Cassia oil is known to boost the immune system — helping the entire body run properly. It maintains a healthy and functioning digestive system and improves blood circulation. Cassia oil is also an antidepressant, and it has been used for years to build courage and a sense of self-worth. It has a warming effect on the body and keeps your mind at peace.
People take Cassia cinnamon by mouth for diabetes, gas (flatulence), muscle and stomach spasms, preventing nausea and vomiting, diarrhea, infections, the common cold, and loss of appetite. Cassia cinnamon contains hydroxychalcone and similar chemicals. These chemicals seem to improve insulin sensitivity. Cassia cinnamon also contains chemicals that may activate blood proteins that increase blood sugar uptake. These effects may improve blood sugar control in patients with diabetes.