Effects of green tea catechin on the blood pressure and lipids in overweight and obese population-a meta-analysis
- PMID: 38034724
- PMCID: PMC10681946
- DOI: 10.1016/j.heliyon.2023.e21228
Effects of green tea catechin on the blood pressure and lipids in overweight and obese population-a meta-analysis
Abstract
Background: Overweight and obesity as main health problems harm human beings worldwide. The number of people diagnosed with overweight and obese is gradually increasing. Green tea catechin has been reported to effectively help control body weight in overweight and obese population, and is protectively against the blood pressure and lipids in people with type 2 diabetes and metabolic syndrome.
Methods: We retrieved 4 English databases (PubMed, Web of science, Cochrane, Scoups) from inception to April 20, 2023. Two reviewers independently determined eligibility, assessed the reporting quality of included studies, and extracted the data. Data were extracted from eleven studies. The results were presented with the weighted mean differences (WMDs), and the confidence intervals (CIs) was 95 %. The random-effects or fixed-effects model was applied according to the heterogeneity. The subgroup analysis was used to identify the source of heterogeneity. Publication bias was evaluated using funnel plots, Egger's test, and Begg's test.
Results: Eleven randomized controlled trials (RCTs) inclusion studies were screened from 3072 literature articles, involving 613 overweight and obese patients. After combining all studies, it was found that in overweight and obese people green tea catechin could reduce waist circumference (WC) (pooled WMD = -1.37 cm, 95 % CI: -2.52 to -0.22 cm, p = 0.019), and triglyceride (TG) (pooled WMD = -0.18 mmol/L, 95 % CI: -0.35 to -0.02 mmol/L, p = 0.032), and increase high density lipoprotein cholesterol (HDL-c) (pooled WMD = 0.07 mmol/L, 95 % CI: 0.01-0.14 mmol/L, p = 0.031).
Conclusion: Green tea catechin supplement effectively reduced WC and TG levels and improved HDL-c levels. However, it did not show the significant effect on the blood pressure in overweight and obese people. The present meta-analysis showed a moderate benefit of green tea catechin supplementation on lipid profiles in overweight and obese people.
Keywords: Blood pressure; Green tea catechin; Lipids; Obese; Overweight.
© 2023 The Authors.
Conflict of interest statement
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Figures
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References
-
- Kelly T., Yang W., Chen C.S., Reynolds K., He J. Global burden of obesity in 2005 and projections to 2030. Int. J. Obes. 2008;32(9):1431–1437. - PubMed
-
- Powell-Wiley T.M., Poirier P., Burke L.E., Despres J.P., Gordon-Larsen P., Lavie C.J., Lear S.A., Ndumele C.E., Neeland I.J., Sanders P., St-Onge M.P., L Amer heart assoc council, N. Council cardiovasc stroke, C. Council clin, E. Council, C. Stroke, obesity and cardiovascular disease: a scientific statement from the American heart association. Circulation. 2021;143(21):E984–E1010. - PMC - PubMed
-
- Wang Q., Li N. Development of obesity and diabetes from the perspective of related guidelines and the expert consensus: a comparative study based on bibliometric analysis. Chinese Journal of Health Management. 2020;14(4):331–336.
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