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Endocrine, Metabolic & Immune Disorders - Drug Targets


ISSN (Print): 1871-5303
ISSN (Online): 2212-3873


What is the Impact of Cinnamon Supplementation on Blood Pressure? A Systematic Review and Meta-Analysis

Author(s): Abed Ghavami, Hossein K. Haghighian, Neda Roshanravan, Rahele Ziaei, Ehsan Ghaedi*, Amir R. Moravejolahkami and Gholamreza Askari*

Volume 21, Issue 5, 2021

Published on: 29 July, 2020

Page: [956 - 965] Pages: 10

DOI: 10.2174/1871530320666200729143614

Price: $65


Aim: This study was designed to make a systematic review and meta-analysis on randomized controlled trials (RCTs) assessing the effect of cinnamon on blood pressure (BP).

Methods: A systematic computerized literature search of PubMed, Scopus, Web of Science, Cochrane Library and Google Scholar databases was conducted up to August 2019. All RCTs using cinnamon supplements in adults were included in this systematic review and meta-analysis.

Results: Out of 927 records, 8 trials that enrolled 582 participants were included. The pooled effect size showed that SBP did not change following cinnamon supplementation. (WMD: -0.61mmHg; 95% CI: -1.36, 0.14, P= 0.111). Also cinnamon supplementation in long-duration (≥ 8weeks) had a significant effect on SBP (WMD: -1.25 mmHg; 95% CI: -2.22, -0.28, P= 0.012). Pooled analysis showed that cinnamon had a significant effect on DBP (WMD: -0.93mmHg, 95% CI: -1.55 to -0.32, P= 0.003). In addition, results from both duration subsets and high dose (>1500 mg/day) of cinnamon supplementation were significant.

Conclusion: Our findings revealed that cinnamon supplementation has favorable effects on DBP although results of SBP were not the same. Nonetheless, further studies are required.

Keywords: Blood pressure, cinnamon, metaanalysis, systematic review, herbal medicine, cardiovascular disease.

Graphical Abstract
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