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Meta-Analysis
. 2024 Nov 22;103(47):e39702.
doi: 10.1097/MD.0000000000039702.

The effect of green tea on patients with type 2 diabetes mellitus: A meta-analysis

Ming-Jie Jia  1 , Xing-Ning Liu  1 , Ying-Chao Liang  1 , De-Liang Liu  2 , Hui-Lin Li  2
Affiliations
Meta-Analysis

The effect of green tea on patients with type 2 diabetes mellitus: A meta-analysis

Ming-Jie Jia et al. Medicine (Baltimore). .

Abstract

Background: To systematically evaluate the effect of green tea on patients with type 2 diabetes.

Methods: A computer search Cochrane, PubMed, Embase, CNKI, Wanfang, VIP, and other Chinese and English databases were conducted for randomized controlled trials of green tea in the treatment of patients with type 2 diabetes. The duration of these trials spanned from the establishment of the database to January 10, 2024. The obtained data were subjected to meta-analysis using Stata15.1 software. A total of 15 articles were included, encompassing 722 patients.

Results: The meta-analysis results showed that compared to the control group, green tea intervention significantly improved the improvement of fasting blood glucose (SMD = -0.41, 95% CI: -0.67 to -0.19, P = .001), glycated hemoglobin (SMD = -0.68, 95% CI: -1.15 to 0.21, P = .004) and insulin resistance index (SMD = -0.70, 95% CI: -1.18 to -0.22, P = .005) in the experimental group compared to the control group. The differences were statistically significant (P < .05).

Conclusion: Green tea significantly improves fasting blood glucose, glycated hemoglobin and insulin resistance in patients with type 2 diabetes.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Figure 1.
Figure 1.
Flow chart of study selection for inclusion in meta-analysis.
Figure 2.
Figure 2.
Quality assessment.
Figure 3.
Figure 3.
Quality assessment.
Figure 4.
Figure 4.
Forest plot of the effect of green tea on fasting blood glucose in patients with T2DM.
Figure 5.
Figure 5.
Forest plot of the effect of green tea on glycated hemoglobin in patients with T2DM.
Figure 6.
Figure 6.
Forest plot of the effect of green tea on insulin resistance in patients with T2DM.
Figure 7.
Figure 7.
Forest plot of the effect of green tea on BMI in patients with T2DM.
Figure 8.
Figure 8.
Funnel plot of green tea on glycemic control status in T2DM patients.
See this image and copyright information in PMC

References

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