Researchers at the University of California found that eating a teaspoon of the sweet spice can significantly reduce blood sugar levels.
Scientists recruited 18 overweight or obese adults who were diagnosed with prediabetes.
Participants followed a diet rich in simple carbohydrates such as white bread and pasta, but devoid of vegetables, for a month.
They were divided into two groups: half of them took a placebo capsule twice daily, and the other group took a capsule containing a teaspoon of cinnamon.
They found that those who took cinnamon capsules had “significantly lower” blood sugar levels than those who took a placebo.
“Cinnamon, a widely available and low-cost dietary supplement, may contribute to improved glucose control when added to the diet in people with obesity-related diabetes,” the researchers wrote.
However, researchers not involved in the study cautioned that larger trials are still needed.