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Green Tea EGCG

Antioxidant · metabolism · longevity

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Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Last reviewed: May 30, 2026
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Green Tea EGCG: Antioxidant · metabolism · longevity. Concentrated EGCG, the most-studied catechin. Supports thermogenesis, cardiovascular markers, and acts as a potent antioxidant. Standard dose 400 mg EGCG, taken in the morning, about $18/month. Evidence rating: strong evidence.

What is Green Tea EGCG?

Green tea is one of the most-researched plant beverages in human medicine. Its primary bioactive, epigallocatechin gallate (EGCG), is a potent polyphenol with antioxidant, mild thermogenic, and metabolic effects. Concentrated extracts deliver in a single capsule what would require 4-8 cups of brewed tea. Clinical research supports green tea EGCG for healthy cholesterol levels, metabolic rate, post-meal glucose handling, and as part of comprehensive longevity protocols. Decaffeinated versions are preferred for evening use or sensitive individuals. Standard doses are 300-600 mg of EGCG per day, taken with food to optimize absorption and minimize the rare risk of liver irritation seen at very high doses.

WHY IT MATTERS

Concentrated EGCG, the most-studied catechin. Supports thermogenesis, cardiovascular markers, and acts as a potent antioxidant.

Natural food sources

Where possible, get Green Tea EGCG from whole foods first. Common dietary sources include:

Green teaMatchaWhite tea

Where to buy

Life Extension Mega Green Tea Extract (Decaf)
RECOMMENDED
Life Extension, Green Tea EGCG
400 mg EGCG · Morning · ~$18/month

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Best for your goal

Interactions

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Common questions

What is Green Tea EGCG?
Green tea is one of the most-researched plant beverages in human medicine. Its primary bioactive, epigallocatechin gallate (EGCG), is a potent polyphenol with antioxidant, mild thermogenic, and metabolic effects. Concentrated extracts deliver in a single capsule what would require 4-8 cups of brewed tea. Clinical research supports green tea EGCG for healthy cholesterol levels, metabolic rate, post-meal glucose handling, and as part of comprehensive longevity protocols. Decaffeinated versions are preferred for evening use or sensitive individuals. Standard doses are 300-600 mg of EGCG per day, taken with food to optimize absorption and minimize the rare risk of liver irritation seen at very high doses.
What is Green Tea EGCG used for?
Antioxidant · metabolism · longevity. Concentrated EGCG, the most-studied catechin. Supports thermogenesis, cardiovascular markers, and acts as a potent antioxidant.
What is the standard dose of Green Tea EGCG?
400 mg EGCG, typically taken in the morning. Approximate cost is $18 per month.
Who should avoid Green Tea EGCG?
Use extra caution, and speak to a clinician first, if you are liver.
How strong is the evidence for Green Tea EGCG?
Strong evidence for its primary uses. See the full study list on the research page.

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