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Objective <p>Polyphenol-rich foods, such as barberry, improve cardiovascular risk factors, but evidence remains inconsistent. Therefore, this systematic review and meta-analysis were carried out to assess the effects of barberry supplementation on components of metabolic syndrome in adults.</p> Method <p>A comprehensive literature search of Web of Science, Embase, PubMed, Scopus, and the Cochrane Library was conducted up to July 2025. We included randomized clinical trials that examined the effect of barberry on one of the components of metabolic syndrome in this meta-analysis. Weighted mean differences (WMD) were pooled using a random-effects model.</p> Results <p>Eleven studies published between 2012 and 2023 were included, comprising 718 participants. Barberry supplementation significantly reduced weight (WMD = − 1.48 kg; 95% CI: − 2.94 to − 0.02), systolic blood pressure (WMD: − 9.84; 95% CI: − 17.36 to − 2.31), diastolic blood pressure (WMD: − 11.31; 95% CI: − 19.63 to − 3.00), total cholesterol (WMD = − 17.90&#xa0;mg/dL; 95% CI: − 32.99 to − 2.81), low-density lipoprotein cholesterol (WMD = − 11.38&#xa0;mg/dL; 95% CI: − 21.35 to − 1.40), and triglyceride (WMD = − 23.63&#xa0;mg/dL; 95% CI: − 35.58 to − 11.68), FBS (WMD = − 16.69 mg/dL; 95% CI: − 30.46 to − 2.93), HOMA-IR (WMD = − 0.95; 95% CI: − 1.79 to − 0.12), insulin (WMD = − 1.70 mU/L; 95% CI: − 2.33 to − 1.08). It also increased high-density lipoprotein cholesterol levels (WMD = 2.46&#xa0;mg/dL; 95% CI: 0.61 to 4.31). However, no significant effect was found for glycated hemoglobin (WMD = − 0.72%; 95% CI: − 1.85 to 0.40) or body mass index (WMD = − 0.28 kg/m<sup>2</sup>; 95% CI: − 0.59 to 0.03).</p> Conclusion <p>Barberry supplementation elicits modest but significant improvements in key components of metabolic syndrome, including blood pressure, weight, lipid profile, and glycemic indices. These results support its potential as an adjunctive dietary intervention for managing metabolic health.</p>

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The effect of barberry supplementation on components of metabolic syndrome: a grade assessment systematic review and meta-analysis of randomized controlled trials

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月30日

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  • Xiu Zhang,
  • Qion Lou,
  • Sho Liou,
  • Xiaoshan Wang

摘要

Objective

Polyphenol-rich foods, such as barberry, improve cardiovascular risk factors, but evidence remains inconsistent. Therefore, this systematic review and meta-analysis were carried out to assess the effects of barberry supplementation on components of metabolic syndrome in adults.

Method

A comprehensive literature search of Web of Science, Embase, PubMed, Scopus, and the Cochrane Library was conducted up to July 2025. We included randomized clinical trials that examined the effect of barberry on one of the components of metabolic syndrome in this meta-analysis. Weighted mean differences (WMD) were pooled using a random-effects model.

Results

Eleven studies published between 2012 and 2023 were included, comprising 718 participants. Barberry supplementation significantly reduced weight (WMD = − 1.48 kg; 95% CI: − 2.94 to − 0.02), systolic blood pressure (WMD: − 9.84; 95% CI: − 17.36 to − 2.31), diastolic blood pressure (WMD: − 11.31; 95% CI: − 19.63 to − 3.00), total cholesterol (WMD = − 17.90 mg/dL; 95% CI: − 32.99 to − 2.81), low-density lipoprotein cholesterol (WMD = − 11.38 mg/dL; 95% CI: − 21.35 to − 1.40), and triglyceride (WMD = − 23.63 mg/dL; 95% CI: − 35.58 to − 11.68), FBS (WMD = − 16.69 mg/dL; 95% CI: − 30.46 to − 2.93), HOMA-IR (WMD = − 0.95; 95% CI: − 1.79 to − 0.12), insulin (WMD = − 1.70 mU/L; 95% CI: − 2.33 to − 1.08). It also increased high-density lipoprotein cholesterol levels (WMD = 2.46 mg/dL; 95% CI: 0.61 to 4.31). However, no significant effect was found for glycated hemoglobin (WMD = − 0.72%; 95% CI: − 1.85 to 0.40) or body mass index (WMD = − 0.28 kg/m2; 95% CI: − 0.59 to 0.03).

Conclusion

Barberry supplementation elicits modest but significant improvements in key components of metabolic syndrome, including blood pressure, weight, lipid profile, and glycemic indices. These results support its potential as an adjunctive dietary intervention for managing metabolic health.