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Green Tea Supplements, Drinks, and Brewable Teas ReviewProduct Reviews

Green Tea Review: Supplements, Brewable, Matcha, and Bottled

Find the Best Green Tea and Matcha, Including Supplements and Drinks

CL Tests Find Amounts of EGCG in Green Tea Products Vary Widely

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Brands compared in report

Bigelow Green Tea - Decaffeinated
Celestial Seasonings Green Tea (K-Cup)
Davidson's Organics Gunpowder Green
GNC Herbal Plus Green Tea Complex
Green Foods Organic Matcha Green Tea
Harney & Sons Organic Green
HerbaSway HerbaGreen
Honest Tea Green Tea with Honey
Ito En Oi Ocha Unsweetened Green Tea
Jade Leaf Organic Japanese Matcha
Kirkland (Costco) Green Tea A Blend of Sencha/Matcha
Kiss Me Organics Organic Matcha
Kroger Green Tea
Life Extension Mega Green Tea Extract
Lipton Green Tea
NOW EGCg Green Tea Extract
Numi Organic Tea Gunpowder Green
Organic Kenko Tea Matcha
Organic Matcha DNA
Pure Leaf Unsweetened Green Tea
Salada Green Tea Naturally Decaffeinated
Solgar Green Tea Leaf Extract
Spring Valley [Walmart] Green Tea
Superfoods by MRM Raw Matcha Green Tea Powder
Swanson Superior Herbs Green Tea Extract
Trader Joe's Specialty Teas Decaffeinated Green Tea
Twinings 100% Organic Pure Green
Vitacost Green Tea Extract
Whole Foods Market Green Tea
Zhou Green Tea Extract

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More about this report 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 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 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, a warning for women who are pregnant or nursing, liver toxicity, and effects on bones and teeth

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Related questions and answers

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Finding the Best Green Tea and Avoiding Dangers with CL Founder, Dr. Tod Cooperman


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