Green Tea Extract Supplements: Benefits, Dosage and Safety
Green tea extract supplements are common in fat burners, but weight loss effects are tiny. Concentrated extracts have been linked to rare but serious liver injury, especially when taken on an empty stomach. Drinking green tea is a safer way to enjoy it.
Evidence at a glance
| Use | Grade | What the research shows |
|---|---|---|
| Weight loss | D | Effects are tiny and not clinically meaningful. |
A: strong, consistent human evidence · B: moderate · C: limited or mixed · D: good evidence of no benefit.
Green tea contains catechins such as EGCG and a little caffeine.
How to take it
We don't recommend concentrated extracts for weight loss. See the honest weight loss supplements guide.
Safety and interactions
Stop and see a doctor if you develop yellow skin, dark urine or abdominal pain.
Always tell your doctor and pharmacist about the supplements you take. Check combinations with our interaction checker.
Sources
This page is for education and is not a substitute for advice from your doctor. Read our medical disclaimer.