The health benefits of Cassia Essential Oil can be attributed to its properties as an anti-diarrhea, antidepressant, anti-emetic, anti-galactogogue, antimicrobial, anti-rheumatic, anti-arthritic, astringent, antiviral, carminative, circulatory, emenagogue, febrifuge and stimulant substance.Its bark is actually used to flavor food and beverages, just like original Cinnamon. The essential oil of Cassia is derived by steam distillation of its leaves and twigs. Bark is also used sometimes to extract the oil. The chief constituents of the essential oil of Cassia are benzaldehyde, chavicol, cinnamic aldehyde, cinnamyl acetate and linalool. Chinese healers knew the medicinal uses of Cassia far back in history. It is believed that it is from them, the medicinal uses of this plant spread to other parts of the world.