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Effects of green tea supplementation on obesity indices and adipokines in adults: a grade-assessed systematic review and dose-response meta-analysis of randomised controlled trials.

  • 2025-05-06
  • International journal of food sciences and nutrition 76(4)
    • Mohammad Jafar Dehzad
    • Hamid Ghalandari
    • Fatemeh Sadat Fahimzad
    • Zahra Maghsoudi
    • Maede Makhtoomi
    • Mehran Nouri
    • Moein Askarpour

Study Design

Type
Meta-Analysis
Methods
Systematic review and meta-analysis; searched PubMed, Scopus, Web of Science Core Collection, and Google Scholar for studies up to February 2024; data extraction and subgroup analyses performed

Background

In this systematic review and meta-analysis, the impact of green tea supplementation on measurement/indices of adiposity was investigated.

Methods

Using predefined keywords, online databases (PubMed, Scopus, Web of Science Core Collection, and Google Scholar) were searched for relevant studies, published from inception up to February 2024. Data were extracted and registered. Subgroup analyses and the investigation of linear and non-linear associations were carried out.

Results

Green tea supplementation reduced BW (WMD: -0.74 kg; 95% CI: -0.97, -0.51), BMI (WMD: -0.29 kg/m2; 95% CI: -0.38, -0.19), WC (WMD: -1.04 cm; 95% CI: -1.55, -0.53), BFP (WMD: -0.65%; 95% CI: -1.03, -0.27), and leptin (WMD: -0.92 ng/ml; 95% CI: -1.71, -0.14), but did not change adiponectin levels (WMD: 0.20 µg/ml; 95% CI: -0.17, 0.57).

Conclusion

Supplementation with green tea seems to be effective in reducing excess adiposity.

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