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Treatment

Green Tea Extract (EGCG)

Antioxidant and metabolic support from EGCG

Backed by 4 high-credibility studiesStudies10Conditions1CategoryCAMLast reviewedJan 2026
Complementary and Alternative Medicine (CAM)
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Overview

In plain language

Green tea extract provides concentrated catechins, particularly EGCG, powerful antioxidants that support metabolism, brain health, and cardiovascular function. It offers the benefits of green tea without consuming multiple cups daily.

Green tea extract is standardized for catechins, with epigallocatechin gallate (EGCG) being the most potent. These polyphenols cross the blood-brain barrier, providing neuroprotective benefits while supporting healthy metabolism and fat oxidation. EGCG also promotes cardiovascular health by supporting healthy cholesterol oxidation and blood vessel function. The extract provides consistent, researched doses of these beneficial compounds.

Benefits

Use this section to compare the kinds of benefits people most often look for from this treatment.

General Benefits

Green tea extract offers powerful antioxidant protection and supports multiple aspects of health including metabolism, brain function, and cardiovascular wellness. EGCG helps protect cells from oxidative damage while supporting the body's natural fat-burning processes.

Physical Benefits

  • Supports metabolism – Catechins help enhance thermogenesis and fat oxidation for healthy weight management

  • Promotes cardiovascular health – Supports healthy blood vessel function and cholesterol levels

  • Provides cellular protection – Powerful antioxidants protect cells throughout the body from oxidative stress

  • Supports liver health – May help protect liver cells and support natural detoxification processes

Mental Benefits

Green tea extract supports brain health through EGCG's ability to cross the blood-brain barrier and provide neuroprotection. Combined with L-theanine naturally present, it promotes calm alertness and may support long-term cognitive health.

Additional Information

Related Conditions: Heart disease, metabolic syndrome, obesity, fatigue, liver disease, skin aging, inflammation, cognitive decline

Relevant Research

Review the available studies by quality score or date to see where the evidence is strongest.

Research Study

l-Theanine May Enhance Cognitive Function in Older Adults

Study Credibility: High

Research suggests that l-Theanine might help improve mental performance in seniors, though more studies are needed.

10/1/2025
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Research Study

Exploring Green Tea Extract for Postmenopausal Women

Study Credibility: High

Green tea extract might be safe for postmenopausal women, but it's important to be cautious.

6/6/2015
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Research Study

Epigallocatechin Gallate Modulates Gut Microbiota and Improves Cognitive Function in Older Adults

Study Credibility: High

A human trial found that green tea’s EGCG compound can improve gut balance and memory function in older adults, highlighting its role in brain health.

12/29/2025
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Research Study

Regular Tea Drinking May Protect Against Memory Loss in Seniors

Study Credibility: High

Consistent tea consumption over ten years reduced the risk of cognitive decline by 12% in older adults.

1/1/2025
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Research Study

Polyphenol Supplements May Aid Muscle Recovery in Soccer Players

Study Credibility: Medium

Research suggests that polyphenol supplements might help soccer players recover from muscle stress and fatigue more effectively.

5/1/2026
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Research Study

Green Tea Polyphenols and Metabolic Health: A Narrative Review

Study Credibility: Medium

A comprehensive review found that regular green tea consumption supports metabolism, lowers inflammation, and helps maintain healthy weight in olde...

12/29/2025
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Research Study

L-Theanine in Tea May Improve Mood in Older Adults

Study Credibility: Medium

Research suggests that L-Theanine, a compound in tea, could help improve mood and reduce symptoms of depression in seniors.

2/1/2026
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Research Study

Plant-Based Supplements May Enhance Exercise Recovery for Seniors

Study Credibility: Medium

New research suggests plant-based supplements can improve exercise performance and speed up recovery in older adults.

1/1/2025
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Research Study

Moderate Coffee and Tea Consumption May Lower Dementia Risk in Adults

Study Credibility: Medium

Drinking 2-3 cups of caffeinated coffee or 1-2 cups of tea daily is linked to a lower risk of dementia.

9/26/2026
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Research Study

Holy Basil May Slightly Improve Reaction Times in Healthy Adults

Study Credibility: Medium

The study found that Holy Basil (Ocimum tenuiflorum) might improve reaction times in executive function tasks for healthy adults, though overall cognitive benefits were limited.

1/1/2026
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Frequently Asked Questions About Green Tea Extract (EGCG)

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