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Dr.Shintani

Dr.Shintani

Terry

Is Mamaki Tea Better Than Green Tea? What the Research Shows

Posted on November 4, 2026 By drshintani No Comments on Is Mamaki Tea Better Than Green Tea? What the Research Shows

Mamaki (Pipturus albidus) is a Hawaiian herbal tea with a long history of traditional use — and it’s now drawing serious attention from natural health researchers for good reason.

University of Hawaiʻi research has found that mamaki leaves contain higher catechin levels than Gyokuro green tea, as well as oolong and black tea, along with higher rutin than green tea. Chlorogenic acid is also documented as one of mamaki’s three major polyphenols.

These three types of phytonutrients — catechins (such as EGCG), rutin, and chlorogenic acid — have each been studied individually in other research for potential anti-inflammatory, anti-obesity, anti-diabetic, anti-hypertensive, anti-cancer, and liver-protective effects. It’s worth noting these effects are documented for the individual compounds in broader research, rather than being proven specifically for mamaki tea itself — but mamaki’s naturally high levels of these same compounds make it a promising candidate for similar benefits.

One more advantage: unlike green tea (Camellia sinensis), mamaki comes from an entirely different plant and contains no caffeine — so it won’t interfere with sleep.

Research into mamaki is ongoing. A recent USDA-funded study (University of Hawaiʻi, UNC Greensboro, and Wake Forest School of Medicine) is currently investigating mamaki’s bioactive compounds and their effects on vascular inflammation.

For more on natural health, get Dr. Shintani’s free eBook, Health Secrets, at peacediet.org, and his full book The Peace Diet on Amazon.

Sources: University of Hawaiʻi — Nutrients, Polyphenols, and Total Antioxidant Activities in Mamaki | NLM Native Voices | UNC Greensboro — USDA Grant to Study Hawaiian Tea Leaves

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About Dr. Shintani

Dr. Terry Shintani, MD, JD, MPH is a Board Certified Physician and Harvard-trained
nutritionist. His wellness program won a national award from the U.S. Secretary of
Health and Human Services and his peer-reviewed work is published in the American Journal of
Clinical Nutrition and several other scientific journals.  He also was featured in “Dateline NBC”,
CBS, “This Morning” CNN, Fox and  Newsweek  His Program is featured in the Encyclopedia
Britannica.  He has written 16 books including the Eat More Weigh Less(r) Diet, the Hawaii
Diet, the Carbohydrate revolution and the Peace Diet. Among his many community awards, He
was named a “Food Hero” by Eating Well Magazine, He was knighted by the Orthodox Order of
St. John, and formally designated a “Living Treasure” of Hawaii.

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