Abstract Title:

Effects of garlic supplementation on serum inflammatory markers: A systematic review and meta-analysis of randomized controlled trials.

Abstract Source:

Diabetes Metab Syndr. 2020 Jun 19 ;14(5):1153-1161. Epub 2020 Jun 19. PMID: 32673835

Abstract Author(s):

Farhang Mirzavandi, Mehdi Mollahosseini, Amin Salehi-Abargouei, Elham Makiabadi, Hassan Mozaffari-Khosravi

Article Affiliation:

Farhang Mirzavandi


BACKGROUND AND AIMS: Previous studies have indicated that garlic consumption may be beneficial in improving inflammation. This systematic review and meta-analysis aimed to examine the effect of garlic supplementation on inflammatory biomarkers.

METHODS: PubMed/Medline, Scopus and ISI web of science were searched up to February 2019. Random effects model was used to calculate the overall effects on C-reactive protein (CRP), Interleukin-6 (IL-6), and Tumor necrosis factor-α (TNF-α).

RESULTS: 17 randomized controlled trials (RCTs) were included in the meta-analyses. Garlic supplementation significantly reduced the level of circulating CRP (P < 0.05), whereas it did not have any significant effect on IL-6 level (p > 0.05). Sub-group analysis showed that aged garlic extract (AGE) was able to reduce CRP and TNF-α significantly (P < 0.05).

CONCLUSIONS: This meta-analysis showed that supplementation with garlic could reduce the level of circulating CRP and AGE could reduce the level of TNF-α and CRP, whereas it had no significant effect on the IL-6 level.

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