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A new study finds green tea compounds help burn fat and regulate blood sugar, especially in obese mice, highlighting a modest impact on metabolism and weight management for humans when used with diet and exercise.
October 8, 2025
Source:
SciTechDaily
New Insights Into Green Tea and Metabolism
Scientists have identified how green tea’s plant compounds can help the body burn fat and regulate blood sugar, spotlighting new evidence from animal research. This study, reported on October 8, 2025, found green tea extract improved fat metabolism and muscle health in obese mice, with no negative impact in lean counterparts.
Main Compounds at Work
Epigallocatechin gallate (EGCG) is the main catechin in green tea, shown to prolong fat-burning signals in the body.
Caffeine works with EGCG to increase energy use and fat oxidation, especially at rest.
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Source:
Science Daily
How Strong Is the Evidence for Humans?
While animal data are promising, studies in people show a limited effect on weight loss. Meta-analyses suggest green tea can result in a small reduction in body weight—about 1 kg—when consumed regularly. However, these effects are not generally considered clinically significant on their own.
Benefits may be greater for those combining green tea with diet and exercise changes.
Optimal green tea intake for humans isn’t fully established, but the dose in animal studies equated to around three cups per day for people. Read more at Healthline
Some studies also show improved glucose sensitivity and insulin resistance in mice, but results for cholesterol or triglycerides in humans are inconsistent. Most research has focused on extracts rather than plain green tea.
Read More
Source:
Medical Xpress
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