Cinnamon supplementation can significantly reduce body weight, body mass index, and waist-hip ratio.
In the meta-analysis, various databases (including Medline, ISI Web of Science, Scopus, Google Scholar, and Cochrane Library) were searched without limitations until August 2019 for relevant randomized controlled clinical trials. The risk of bias of the randomized controlled clinical trials was appraised with the Cochrane collaboration's tool. The random-effects model was employed for the meta-analysis.
The conclusive results indicate that cinnamon supplementation has a notable effect in reducing body mass index, body weight, and waist-hip ratio. Meanwhile, cinnamon supplementation didn't yield significant effects on waist circumference and body fat mass. These results were deduced from twenty-one randomized controlled trials involving a total of 1,480 participants.
