Nutrient Database

EGCG

antioxidant

Approved

General information about nutrients. No diagnosis, no medical advice. If you take medication, are pregnant or have a medical condition, talk to your doctor before taking supplements.

Empty stomachFasting safeNot with iron

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Overview

Primary catechin in green tea.

Interactions

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Vitamin C enhances EGCG stability

Vitamin C prevents the oxidative degradation of EGCG in the alkaline environment of the intestine, preserving its catechin structure and significantly increasing its bioavailability.

Research status

Studied for its effects on the AMPK and mTOR signalling pathways.

Top 5 food sources

Matchagreen teawhite teaoolong teadark chocolate
Expert consensus: Moderate

Best from green tea or standardized extracts. High doses may stress the liver.

EGCG — Stackwell