Green Tea Extract (EGCG)

Metabolism & weight management

Function & benefits

It contains powerful catechin antioxidants that help protect cells from oxidative stress and support the daily metabolic rate.

Dosage & how to use

Recommended dose	250–400 mg EGCG daily
Best time to take	With a meal (morning or midday)
Frequency	Once daily

Important warnings

EFSA warning: never take it on an empty stomach

Doses above 800 mg EGCG per day may cause liver toxicity

Not for pregnant or breastfeeding women or children

Drug interactions

May interact with blood thinners and blood pressure medicines; avoid combining it with stimulants or drugs that affect the liver.

Scientific references

EFSA Journal 2018;16(4):5239 (safety of green tea catechins)
NIH NCCIH: Green Tea

View in the supplements guide

Related supplements

📚 Published sources and research: European Food Safety Authority (EFSA) • National Institutes of Health (NIH - ODS) • PubMed / Cochrane databases

Content last updated: 17 October 2026 · Based on published sources and research (EFSA / NIH / PubMed)

⚖️ Medical disclaimer: The information and data provided here are for health education and nutritional guidance only. They are not a medical diagnosis and never replace a direct consultation with your doctor or pharmacist. Always consult your doctor before starting any supplement, especially during pregnancy or breastfeeding or when taking long-term medication.