Effects of cinnamon supplementation on body weight and composition in adults: A systematic review and meta-analysis of controlled clinical trials
Zeinab Yazdanpanah
Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Search for more papers by this authorMaryam Azadi-Yazdi
Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Search for more papers by this authorHadis Hooshmandi
Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Search for more papers by this authorNahid Ramezani-Jolfaie
Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Search for more papers by this authorCorresponding Author
Amin Salehi-Abargouei
Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Correspondence
Amin Salehi-Abargouei, Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Email: [email protected]; [email protected]
Search for more papers by this authorZeinab Yazdanpanah
Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Search for more papers by this authorMaryam Azadi-Yazdi
Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Search for more papers by this authorHadis Hooshmandi
Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Search for more papers by this authorNahid Ramezani-Jolfaie
Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Search for more papers by this authorCorresponding Author
Amin Salehi-Abargouei
Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Correspondence
Amin Salehi-Abargouei, Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Email: [email protected]; [email protected]
Search for more papers by this authorAbstract
Background
This systematic review and meta-analysis aimed to investigate the effect of cinnamon on body weight, body mass index (BMI), waist circumference (WC), waist–hip ratio (WHR), and body fat mass including the maximum number of studies.
Methods
Medline, ISI Web of Science, Scopus, Google Scholar, and Cochrane library were searched with no limitation from inception up to August 2019 for relevant randomized controlled clinical trials (RCTs). The RCTs' risk of bias was assessed using the Cochrane collaboration's tool. Random-effects model was used for meta-analysis.
Results
Twenty-one RCTs with 1,480 participants were included. The meta-analysis showed that cinnamon supplementation significantly reduces BMI [weighted mean difference (WMD) = −0.40 kg/m2, 95% confidence interval (CI): −0.57, −0.22 kg/m2, p < .001, I2 = 78.9%], body weight (WMD = −0.92 kg; 95% CI: −1.51, −0.33 kg; p = .002; I2 = 84.2%), and WHR (WMD = −0.02, 95% CI: −0.038, −0.018; p < 0.001; I2 = 0%). Cinnamon supplementation did not significantly affect the WC (WMD = −1.76 cm, 95% CI: −3.57, −0.045 cm; p = .056; I2 = 90.8%) and body fat mass (WMD = −0.87%, 95% CI: −1.87, 0.025%; p = .057; I2 = 78.6%).
Conclusion
Cinnamon supplementation significantly reduces body weight, BMI, and WHR. Future high-quality long-term RCTs are recommended to confirm these results.
CONFLICT OF INTEREST
There is no conflict of interest to report for this study.
Supporting Information
| Filename | Description |
|---|---|
| ptr6539-supp 0001-Supporting_Information.docxWord 2007 document , 157.7 KB |
Table S1 The strategy used for online database search Table S2 Excluded studies with reasons |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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