09/04/2026
Most people know cinnamon as a baking spice. Herbalists know it as a warming circulatory herb that also happens to be one of the best studied plants for post meal blood sugar.
Three things worth knowing:
1. Ceylon and cassia are not the same herb. Cassia is high in coumarin, Ceylon is not. If you are taking cinnamon regularly rather than sprinkling it occasionally, that difference matters.
2. The type A procyanidins in the bark appear to improve insulin signalling, so the same amount of insulin moves more glucose.
3. Cinnamon also slows gastric emptying slightly, which flattens the spike after a carb heavy meal.
Full guide, including how to decoct it properly and who should check with a prescriber first: herbalclinic.ca/cinnamon-for-blood-sugar-balance