No benefit found
Green tea extract
EGCG and catechin pills. Herbs & mushrooms.
- Verdict
- No benefit foundIt was tested as a cancer remedy and didn't work.
- How sure
- Rung 2 · LimitedFew, small or conflicting human studies, or only indirect measures such as blood markers.
The rung shows how sure the science is, not how big the effect is. How to read these ratings
Cancers affected
Prostate
What the evidence shows
In a one-year randomized trial of 97 men at high risk, green tea catechin pills did not significantly reduce prostate cancer diagnoses.
What to do
Don't take the pills to prevent prostate cancer. Drinking green tea is rated separately in the food finder.
Sources
To take it to your doctor, print this page.
Spotted an error? Tell us and we’ll check it against the sources.
Step by step
For the whole picture, from prevention and screening to treatment and life after, see the prostate cancer page.