Does Cinnamon Actually Lower Blood Sugar?
Medically reviewed by Andre Stone | MD, University of Pittsburgh School of Medicine on August 25th, 2026.
Some studies suggest that cinnamon supplements may modestly reduce fasting blood sugar in some people with type 2 diabetes, but findings are inconsistent and cinnamon has not been proven to improve diabetes outcomes. Laboratory research suggests that several cinnamon compounds may affect insulin signaling and glucose uptake, but their effects in people remain uncertain. Results vary across studies, and there is not enough evidence to conclude that Ceylon cinnamon lowers blood sugar more consistently than cassia cinnamon. If you choose to use cinnamon alongside your diabetes treatment, it should never replace prescribed medications or proper medical care.
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