• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Healthgreen tea

Green Tea Supplements Could Be Hurting Your Liver, Researchers Say

By
Emily Price
Emily Price
Down Arrow Button Icon
By
Emily Price
Emily Price
Down Arrow Button Icon
April 18, 2018, 3:19 PM ET
Green tea pills
A bunch of pills scattered on a white table surfaceAlobeti Getty Images/iStockphoto

Those green tea supplements might not be as healthy for you as you think. Consuming too many of the supplements can have a harmful effect on your liver, according to the European Food Safety Authority (EFSA).

Taking a green tea supplement is a bit different than drinking green tea, which the agency says is generally safe. Tea infusions typically only contain 90 to 300 mg of antioxidants, while most supplements contain up to 1,000 mg, according to the EFSA.

Researchers have determined that consuming more than 800 mg of the antioxidants naturally present in green tea can lead to higher health risks, including liver damage. The organization has not determined a dosage of the supplement that it deems entirely safe.

Green tea is thought to have a number of health benefits, including improving your brain function, boosting your metabolism, and lowering your risk of developing cancer.

About the Author
By Emily Price
See full bioRight Arrow Button Icon

Latest in Health

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Health

After the FDA spent years rejecting over flavored vape products, Trump reportedly pressed his FDA commissioner to allow mango and blueberry flavors
PoliticsU.S. Politics
After the FDA spent years rejecting over flavored vape products, Trump reportedly pressed his FDA commissioner to allow mango and blueberry flavors
By Marco Quiroz-GutierrezMay 7, 2026
5 hours ago
Ryanair CEO Michael O'Leary
Travel & LeisureAviation
It’s always happy hour at the airport bar, but Ryanair’s CEO is calling for a crackdown on 6am tipples: ‘Who needs to be drinking beer at that time?’
By Tristan BoveMay 6, 2026
19 hours ago
Saunabox Review (2026): Expert Tested
HealthDietary Supplements
Saunabox Review (2026): Expert Tested
By Emily PharesMay 6, 2026
21 hours ago
The 10 Best Mother’s Day Gifts in 2026: Must Haves for Your Mom
HealthDietary Supplements
The 10 Best Mother’s Day Gifts in 2026: Must Haves for Your Mom
By Christina SnyderMay 5, 2026
2 days ago
How the next CDC director could reshape America’s $5.3 trillion health care industry
HealthCDC
How the next CDC director could reshape America’s $5.3 trillion health care industry
By Cassie McGrath and Healthcare BrewMay 5, 2026
2 days ago
A man shaves wood pieces from a block.
EconomyRetirement
Economists have found an answer to slowing cognitive decline: avoid retiring early, study finds
By Sasha RogelbergMay 5, 2026
2 days ago

Most Popular

A Michigan farm town voted down plans for a giant OpenAI-Oracle data center. Weeks later, construction began
Magazine
A Michigan farm town voted down plans for a giant OpenAI-Oracle data center. Weeks later, construction began
By Sharon GoldmanMay 6, 2026
1 day ago
Tokyo is throwing out its strict office dress code and asking workers to wear shorts amid the war in Iran energy crisis
Success
Tokyo is throwing out its strict office dress code and asking workers to wear shorts amid the war in Iran energy crisis
By Emma BurleighMay 5, 2026
2 days ago
Mark Zuckerberg once gave a Facebook engineer startup advice at 2 a.m. while 'hanging out with all the interns'—she quit and raised millions after
Success
Mark Zuckerberg once gave a Facebook engineer startup advice at 2 a.m. while 'hanging out with all the interns'—she quit and raised millions after
By Orianna Rosa RoyleMay 6, 2026
19 hours ago
Economists have found an answer to slowing cognitive decline: avoid retiring early, study finds
Economy
Economists have found an answer to slowing cognitive decline: avoid retiring early, study finds
By Sasha RogelbergMay 5, 2026
2 days ago
AI could solve America's $39 trillion debt crisis—but only if Washington abandons displaced workers, Yale Budget Lab warns
Economy
AI could solve America's $39 trillion debt crisis—but only if Washington abandons displaced workers, Yale Budget Lab warns
By Jake AngeloMay 6, 2026
19 hours ago
The IRS may owe COVID-era refunds to tens of millions of taxpayers. Here’s who could qualify
Personal Finance
The IRS may owe COVID-era refunds to tens of millions of taxpayers. Here’s who could qualify
By Sydney LakeMay 6, 2026
22 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.