Green Tea Extract (EGCG)

Research: 5/6Safety: 4/5$12/month

Epigallocatechin gallate is the main active polyphenol in green tea. Evidence supports modest effects on metabolic markers (fat oxidation, blood lipids) and antioxidant status, especially at doses of 400-800 mg/day in combination with caffeine. The catch: isolated EGCG at very high doses (above 800 mg/day fasted) has been linked in rare cases to hepatotoxicity, which is why regulatory bodies now flag it. Staying under that threshold and taking it with food resolves most concerns. iTested Verified for polyphenol content.

Also known as: Epigallocatechin gallate, Green Tea Catechins

Evidence Scores

Research Quality5/6: Multiple Human Trials

Safety4/5: Likely Safe / Minor Side Effects

Trust Index: 10/10Transparency Score

Purely Educational: Zero commission. Zero bias. Zero excuses.

100% Neutral, No affiliate links. We make $0 from this recommendation.

Recommended Dose

400-500mg EGCG daily

Health Outcome Impact

Blood Sugar Control4/5

Cellular Health4/5

Energy & Metabolism3/5

Weight Management3/5

Where to Buy

Monthly Cost:$12

Best value buy link (iHerb) \u2192

Research References

[1] pmc.ncbi.nlm.nih.gov [2] www.nccih.nih.gov [3] www.webmd.com

Research last reviewed: 2026-02-16

Products last reviewed: 2026-04-07

Prices last updated: 2026-03-18

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