Some research has found that a particular type of cinnamon, cassia cinnamon, may lower blood sugar in people with diabetes. However, other studies have not found a benefit. Studies of cinnamon for lowering cholesterol and treating yeast infections in people with HIV have been inconclusive.

Lab studies have found that cinnamon may reduce inflammation, have antioxidant effects, and fight bacteria. But it’s unclear what the implications are for people.

For now, studies have been mixed, and it’s unclear what role cinnamon may play in improving health.