Green Tea: what it does, by goal, and the dose that worked
What the 193 human studies of green tea we graded show for each goal, the dose that worked, and the products that hold it. This page is educational, not medical advice.
What it does, by goalMembersThe top 5 of 7 goals
3 of these 193 human studies gave green tea by drip, not by mouth.
| Goal | What the studies show | Studies | Dose that worked |
|---|---|---|---|
| Improved in studies 76 studies, 33 showed an improvement, 22 found none, 15 pooled analyses | 76 | 146 mg | |
| Improved in studies 47 studies, 24 showed an improvement, 2 found none, 4 pooled analyses, 1 by drip, injection or inhaler | 47 | 379 mg | |
| Improved in studies 18 studies, 4 showed an improvement, 1 found none, 3 pooled analyses | 18 | 5 % | |
| Improved in studies 5 studies, 1 showed an improvement, 2 pooled analyses | 5 | – | |
| Improved in studies 1 study, it showed an improvement | 1 | 500 mg | |
| No effect in studies 43 studies, 24 showed an improvement, 4 found none, 8 pooled analyses, 2 by drip, injection or inhaler | 43 | 0.5 % | |
| No effect in studies 36 studies, 22 showed an improvement, 6 found none, 3 pooled analyses, 1 by drip, injection or inhaler | 36 | 0.5 % |
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Products – highest ranked firstMembersThe top 3 of 4
Dose and safetyThe dose that worked and the upper limit
The studies taken by mouth that showed an improvement gave 50 mcg to 3 g a day.
Biohacker panelMembersWhat our 10 biohackers say about green tea
Members see what each biohacker said. Start My 7-Day Free Trial →
Questions people askMembersAnswered from the figures on this page
What is green tea good for?
Answer for members.
How much green tea a day?
Answer for members.
Can I take green tea with my meds?
Answer for members.
Members see the answers, checked against their own meds and goals. Start My 7-Day Free Trial →
Educational, not medical advice. Figures come from the human studies on PubMed we have graded; a study counts for a form when it names the form it used. Updated as new studies arrive. How we grade →