2.5/5
Weak
evidence
Body composition evidence brief
Green tea extract
May produce small changes in obesity indices, but it is not a meaningful fat-loss or performance supplement for most lifters.
Headline Finding
Dose-response meta-analysis suggests small obesity-index changes; safety and liver-risk context still matter.
Dose Context
EGCG and caffeine content must be explicit; concentrated extracts are not equivalent to brewed tea.
Important Caveat
Liver-safety concerns matter, especially with concentrated extracts or fasting use.
Source Drawer
Linked Research
- Meta-analysis Obesity dose-response meta-analysis
- Systematic review Energy expenditure systematic review
- Meta-analysis Women anthropometrics meta-analysis
- Systematic review Safety systematic review
- Meta-analysis Inflammation/oxidative marker meta-analysis
How To Read This Rating
The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.
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