Source: Green Tea Catechin Meta-analysis (Hursel 2009) — Catechin (EGCG) + caffeine modestly raised fat oxidation / weight loss; graded on EGCG content, ~300–500 mg/day.
Graded on EGCG, not total extract — fat-oxidation trials use ~300–500 mg EGCG/day, usually with caffeine.
A concentrated source of green-tea catechins, chiefly EGCG, studied for fat metabolism.
EGCG may slow the breakdown of fat-mobilizing hormones, modestly raising energy expenditure.
Safe from a cup of tea. High-dose extracts have rare liver-toxicity reports — don't megadose, and take with food. The weight effect is real but small.
| Per serving | |
|---|---|
| Typical branded single-ingredient product | $0.42 |
| Bulk powder at the clinical dose (250g 50% polyphenols, $22.97) | $0.15 |
Buying bulk powder instead of a branded bottle saves about 65% per serving.
Bulk price: $22.97/250g →Educational only — not medical advice. Grades and clinical doses are computed from public labels against sourced research (citations on the main site); prices last verified 2026-07-21. Expensive Powder has no sponsors; bulk links may earn an affiliate commission, which never affects a grade. Talk to a clinician before starting any supplement.