Browse/Herb & Botanical
Herb & Botanical

Green Tea Extract (EGCG)

01 / OVERVIEW

What this compound does

WHAT IT DOES

Green tea extract is a natural supplement that helps your body manage energy and fight inflammation. It may support your metabolism and help keep your heart healthy. Many people take it to feel more energetic and to support overall wellness.

KEY BENEFITS
Supports healthy metabolism
May improve heart health
Helps manage weight
Promotes steady energy levels
May enhance brain function
BEST FOR
  • • Individuals looking to manage their weight
  • • People wanting to support heart health
  • • Those seeking to boost their energy levels
  • • Adults interested in overall wellness
WHAT TO EXPECT

Users may start to feel increased energy and improved focus within a few days to weeks of consistent use. Some may also notice better metabolism and weight management over time.

WHO SHOULD AVOID THIS
  • • Pregnant or breastfeeding women
  • • Individuals with caffeine sensitivity
  • • People taking certain medications for heart conditions
MYTHS & FACTS
Myth: Green tea extract can replace a healthy diet.
Fact: While it can support health, it should complement a balanced diet, not replace it.
Myth: All green tea extracts are the same.
Fact: Quality and concentration of active ingredients can vary significantly among products.
At a glance
Typical dose
400-800 mg EGCG/day
Evidence
—
Studies indexed2
How it's made

Production details below.

03 / DOSAGE

How much, when

MAINTENANCE

400-800 mg EGCG/day

always with food to protect liver; cycle

TIMING

Green Tea Extract (EGCG) — Morning dose

Take with food

02 / EVIDENCE

Peer-reviewed studies

  • PMID: 10584049

    Fat oxidation

    EGCG + caffeine combination significantly increased fat oxidation during exercise.

    A
  • PMID: 24972454

    Cardiovascular markers

    Green tea consumption associated with lower LDL and blood pressure in meta-analyses.

    B
  • PMID 26093535 · 2016RCT

    Therapeutic effect of high-dose green tea extract on weight reduction: A randomized, double-blind, placebo-controlled clinical trial

    B
  • PMID 37686725 · 2023RCT

    Novel Multi-Ingredient Supplement Facilitates Weight Loss and Improves Body Composition in Overweight and Obese Individuals: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial

    B
  • PMID 12109342 · 2002Narrative Review

    Chemoprevention of bladder cancer

    B
  • PMID 26729332 · 2016Narrative Review

    Therapeutic Advances and Future Prospects in Progressive Forms of Multiple Sclerosis

    B
04 / INTERACTIONS

Medicine interactions

  • Warfarin· blood_thinner

    EGCG may enhance anticoagulant effects, increasing bleeding risk.

    → Monitor INR closely and adjust dosage as necessary.

    HIGH

  • Metformin· diabetes_med

    EGCG may enhance the glucose-lowering effects of metformin.

    → Monitor blood sugar levels for potential adjustments.

    MODERATE

  • Antidepressants (SSRIs)· SSRI

    May affect serotonin levels, potentially altering medication efficacy.

    → Consult with a healthcare provider before combining.

    LOW

This page is a reference summary, not a prescription. Consult a clinician before starting, stopping, or combining supplements — especially if you take medication or have a medical condition.