Initially Posted: 05/03/2018 | Last Updated: 09/13/2020
Green Tea Supplements, Drinks, and Brewable Teas Review

Green tea supplements, brewable teas, matcha, and bottled drinks compared in this review

6154_large_6154_large_CelestialSeasonings-KCups-GreenTea-Large-2018.jpg

Celestial Seasonings Green Tea (K-Cup)

6137_large_6137_large_Solgar-Supplement-GreenTea-Large-2018.jpg

Solgar Green Tea Leaf Extract

6136_large_6136_large_NOW-Supplement-GreenTea-Large-2018.jpg

NOW EGCg Green Tea Extract

6135_large_6135_large_LifeExtension-Supplement-GreenTea-Large-2018.jpg

Life Extension Mega Green Tea Extract

6128_large_6128_large_HonestTea-Drinks-GreenTea-Large-2018.jpg

Honest Tea Green Tea with Honey

6127_large_6127_large_HarneyAndSon-Drinks-GreenTea-Large-2018.jpg

Harney & Sons Organic Green

6139_large_6139_large_Swanson-Supplement-GreenTea-Large-2018.jpg

Swanson Superior Herbs Green Tea Extract

6148_large_6148_large_Lipton-Bags-GreenTea-Large-2018.jpg

Lipton Green Tea

6147_large_6147_large_Bigelow-Bags-GreenTea-Large-2018.jpg

Bigelow Green Tea - Decaffeinated

6153_large_6153_large_Davidsons-Loose-GreenTea-Large-2018.jpg

Davidson's Organics Gunpowder Green

6130_large_6130_large_GNC-Supplement-GreenTea-Large-2018.jpg

GNC Herbal Plus Green Tea Complex

6131_large_6131_large_GreenFoods-Supplement-GreenTea-Large-2018.jpg

Green Foods Organic Matcha Green Tea

6133_large_6133_large_HerbaSway-Supplement-GreenTea-Large-2018.jpg

HerbaSway HerbaGreen

6129_large_6129_large_ItoEn-Drinks-GreenTea-Large-2018.jpg

Ito En Oi Ocha Unsweetened Green Tea

6155_large_6155_large_JadeLeaf-Powder-Matcha-GreenTea-Large-2018.jpg

Jade Leaf Organic Japanese Matcha

6159_large_6159_large_Kirkland-Bags-Matcha-GreenTea-Large-2018.jpg

Kirkland (Costco) Green Tea A Blend of Sencha/Matcha

6156_large_6156_large_KissMe-Powder-Matcha-GreenTea-Large-2018.jpg

Kiss Me Organics Organic Matcha

6134_large_6134_large_Kroger-Supplement-GreenTea-Large-2018.jpg

Kroger Green Tea

6149_large_6149_large_Numi-Bags-GreenTea-Large-2018.jpg

Numi Organic Tea Gunpowder Green

6157_large_6157_large_OrganicKenkoTea-Powders-Matcha-GreenTea-Large-2018.jpg

Organic Kenko Tea Matcha

6160_large_6160_large_OrganicMatchaDNA-Bags-Matcha-GreenTea-Large-2018.jpg

Organic Matcha DNA

6146_large_6146_large_PureLeaf-Drinks-GreenTea-Large-2018.jpg

Pure Leaf Unsweetened Green Tea

6150_large_6150_large_Salada-Bags-GreenTea-Large-2017.jpg

Salada Green Tea Naturally Decaffeinated

6138_large_6138_large_SpringValley-Supplement-GreenTea-Large-2018.jpg

Spring Valley [Walmart] Green Tea

6158_large_6158_large_SuperFoods-Powder-Matcha-GreenTea-Large-2018.jpg

Superfoods by MRM Raw Matcha Green Tea Powder

6151_large_6151_large_TraderJoes-Bags-GreenTea-Large-2018.jpg

Trader Joe's Specialty Teas Decaffeinated Green Tea

6152_large_6152_large_Twinings-Bags-GreenTea-Large-2018.jpg

Twinings 100% Organic Pure Green

6140_large_6140_large_Vitacost-Supplement-GreenTea-Large-2018.jpg

Vitacost Green Tea Extract

6142_large_6142_large_WholeFoods-Supplement-GreenTea-Large-2018.jpg

Whole Foods Market Green Tea

6143_large_6143_large_Zhou-Supplement-GreenTea-Large-2018.jpg

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?

See The Review Now

Join now at www.consumerlab.com/join/

Summary

  • What is it? Green tea is made by lightly steaming freshly cut leaves of Camellia sinensis. It is higher in catechins (polyphenols) such as EGCG than black tea. It is sold in many forms such as tea bags, loose teas, matcha powders, bottled teas, and as supplements containing extracts with high concentrations of catechins. Green tea also contains caffeine — about half as much per cup as in coffee. (See What It Is).
  • What does it do? Health benefits are generally associated with catechins in green tea, most notably EGCG. Benefits include a modest reduction in LDL cholesterol, reduced growth of uterine fibroids and associations with lower risks of cardiovascular disease, certain cancers and type 2 diabetes. These benefits are generally associated with consumption of 3 or more cups per day. Studies with green tea supplements typically provide 200 mg to 300 mg per day. The evidence regarding weight loss and memory benefits is mixed and may relate to the caffeine in green tea. (See What It Does).
  • Best products? Our tests (see What CL Found) found that amounts of EGCG in products vary widely: Supplements provided 46 mg to 500 mg per daily serving. Brewable teas (e.g., bags) provided 27 mg to 79 mg per cup. Matcha powders provided 73 mg to 119 mg per teaspoon (2 grams). Bottled green tea provided 20 mg to 59 mg per cup. (Click on each to see our Top Picks).
  • Problems with products? Four products failed our tests. One contained only 55% of its listed EGCG and three others contained significantly less caffeine than claimed on their labels. Although green tea leaves can accumulate toxic lead, none of the products were found to provide significant amounts of lead.
  • Cautions: Green tea can interfere with a range of drugs. Liver toxicity is a concern with high doses of EGCG from green tea supplements. Avoid excessive green tea when pregnant. Excessive tea consumption can make bones and teeth brittle. Don't drink very hot tea due to an association with gastric cancer. (See Concerns and Cautions).

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 

Join to unlock the full report and get full access to over 1,300 reviews

See The Review Now

Join now at www.consumerlab.com/join/