Effectiveness of cinnamon for lowering hemoglobin A1C in patients with type 2 diabetes: a randomized, controlled trial.

Crawford, Paul
Journal of the American Board of Family Medicine : JABFM; 22(5):507-12. PMID: 19734396
Nellis Family Medicine Residency, Mike O'Callaghan Federal Hospital, Las Vegas, NV 89191, USA.


Multiple trials in the past have shown conflicting results of whether cinnamon lowers glucose or hemoglobin A1C (HbA1C). The purpose of this study was to determine whether cinnamon lowers HbA1C in patients with type 2 diabetes. I performed a randomized, controlled trial to evaluate whether daily cinnamon plus usual care versus usual care alone lowers HbA1c.