Share ConsumerLab.com's information with family and friends — or just send to yourself. Simply provide an email address below.
You must provide a valid email address.
Your email address*:
Your name*: Send me a copy
Email Address where it's going*:
*Addresses and name will only be used for sending this message.
Additional message (optional):
Your message has been sent. Thanks for sharing!
THIS CONTENT IS COPYRIGHT PROTECTED
As a ConsumerLab.com member, you may print a copy of this report for your personal use. You can access a special print version by clicking the "Print" icon in the upper right corner of this report or by clicking here. You can then use your web browser's print functions to print the whole report or just selected pages.
You may also email or post a link to this report using the web address above. Non-members using the link will see a free summary and can join to view the full report. Other means of copying or distributing this report, in part or full, are not permitted.
If you are sight-impaired and your computer is having trouble converting the text in this report to speech, contact us for assistance at Membership@ConsumerLab.com or by phone at 914-722-9149.
Green Tea Review: Supplements, Brewable, Matcha, and Bottled
Initial Posting: 5/5/18 Last Update: 10/1/19
Find the Best Green Tea and Matcha, Including Supplements and Drinks
CL Tests Find Amounts of EGCG in Green Tea Products Vary Widely
Green tea supplements, brewable teas, matcha, and bottled drinks compared in this review
Bigelow Green Tea - Decaffeinated
Kirkland (Costco) Green Tea A Blend of Sencha/Matcha
Salada Green Tea Naturally Decaffeinated
Celestial Seasonings Green Tea (K-Cup)
Kiss Me Organics Organic Matcha
Solgar Green Tea Leaf Extract
Davidson's Organics Gunpowder Green
Kroger Green Tea
Spring Valley [Walmart] Green Tea
GNC Herbal Plus Green Tea Complex
Life Extension Mega Green Tea Extract
Superfoods by MRM Raw Matcha Green Tea Powder
Green Foods Organic Matcha Green Tea
Lipton Green Tea
Swanson Superior Herbs Green Tea Extract
Harney & Sons Organic Green
NOW EGCg Green Tea Extract
Trader Joe's Specialty Teas Decaffeinated Green Tea
Numi Organic Tea Gunpowder Green
Twinings 100% Organic Pure Green
Honest Tea Green Tea with Honey
Organic Kenko Tea Matcha
Vitacost Green Tea Extract
Ito En Oi Ocha Unsweetened Green Tea
Organic Matcha DNA
Whole Foods Market Green Tea
Jade Leaf Organic Japanese Matcha
Pure Leaf Unsweetened Green Tea
Zhou Green Tea Extract
Make sure the green tea supplement, brewable tea, matcha, or drink you use passed our tests and is right for you!
Isn't your health worth it?
ConsumerLab.com tested the strength and purity of 30 green tea products to help you know what's really in them and how they compare.
Green tea contains EGCG and other polyphenol catechins that may reduce LDL cholesterol and lower the risk of developing cardiovascular disease, certain cancers and type 2 diabetes. However, amounts of these compounds in products vary enormously -- from as little as 20 mg to as much as 500 mg -- and are often incorrectly listed on labels or not listed at all.
Our tests also showed that when it comes to caffeine, you can't always trust what's listed on green tea product labels.
What's more, ConsumerLab found the cost to obtain an equivalent dose of EGCG to range from as little as 5 cents to more than $6.
You must be a ConsumerLab.com member to get the full green tea test results along with ConsumerLab's Top Picks and tips on how to choose and use green tea. You'll get results for 30 green tea products including supplements, brewable green teas, matcha powders, and bottled green tea beverages. Twenty-six of these were selected by ConsumerLab.com and four others passed the same testing in CL's voluntary Quality Certification Program. In the review, you'll learn:
ConsumerLab's Top Picks for green tea supplements, brewable teas, matcha powders and bottled green teas based on quality, value, and even taste
Which products passed or failed our tests and why
How much EGCG, total catechins, and caffeine is in each product
Why contamination with lead, cadmium and arsenic is a concern, and what our tests showed
Price comparisons showing how to get a green tea product with EGCG at the lowest cost
Clinical information about the efficacy of green tea and dosage
Cautions and potential side effects for green tea -- including drug interactions, concerns with plastic tea bags, a warning for women who are pregnant or nursing, liver toxicity, and effects on bones and teeth
Finding the Best Green Tea and Avoiding Dangers with CL Founder, Dr. Tod Cooperman
Learn More About Green Tea
ConsumerLab.com Answers -- for Green Tea Review: Supplements, Brewable, Matcha, and Bottled
Question: Are supplements which claim increased absorption or improved bioavailability telling the truth? Is it worth paying more for these? Are there concerns? Get the answer >>
Question: I take warfarin (Coumadin), an anticoagulant drug. Are there supplements I should avoid, or be taking, due to this drug? Get the answer >>
Question: I recently purchased some matcha green tea powder claiming to contain up to "137 times the EGCG" that is in brewed green tea. However, the label does not state an actual amount of EGCG and the company would not provide me with any analysis. Is the label true? Get the answer >>
Question: Can L-theanine help as a sleep aid? Will ConsumerLab.com be testing these supplements? Get the answer >>
Question: Do any supplements help with gum disease or periodontitis? Get the answer >>
Question: I've heard that grapefruit juice can interact with medications because it inhibits an enzyme that breaks down drugs in the body. Do any supplements interact the same way with drugs?
Get the answer >>
Question: Does microwaving green tea affect the amount of EGCG or other catechins in the tea? Get the answer >>
Question: Are there any supplements I should avoid when taking acetaminophen (Tylenol)? Get the answer >>
Question: After developing kidney stones, I was told to avoid tea -- but recently I've heard that green tea might actually be helpful for kidney stones. Is that true? Get the answer >>
Question: How significant are the risks to drinking tea from China from heavy metals? Get the answer >>