NOW Foods EGCg 400 mg is our overall pick because it's the best-made, safest-to-dose green tea extract on the list — not the biggest number. Each veg capsule delivers about 200 mg of EGCG (400 mg extract standardized to 80% catechins / 50% EGCG) with very low caffeine, from a brand whose Non-GMO Project Verified, GMP-backed QC is among the most trusted in the category. Crucially, the label is honest and complete: it states the EGCG mg, the catechin %, and the caffeine, so you can dose deliberately. The reason it wins is the same reason it isn't the highest-EGCG capsule here: ~200 mg is a moderate dose by design, and a moderate dose taken with food is exactly the profile that keeps green tea extract's rare liver risk rare. Add a 180-count bottle at a fair price — genuinely low cost per active mg — and you have the honest default. Set expectations correctly, though: this is a modest adjunct to a calorie deficit, taken with food and ideally with caffeine around training, not a fat burner.
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400 mg extract standardized to 80% total catechins and 50% EGCG, delivering ~200 mg of EGCG per capsule with the numbers clearly stated. The deduction is only that ~200 mg is a moderate rather than maximal dose — deliberate, and the safer choice, but not the highest-potency capsule on the list.
The strongest on this axis: Non-GMO Project Verified, produced under NOW's GMP program, vegan and soy-free. NOW's QC pedigree is among the most trusted in supplements, and the label is fully transparent — you see exactly what you're taking.
Best-in-class here: the EGCG mg AND the low (~4 mg) caffeine are both disclosed, and the moderate ~200 mg dose is easy and sensible to take with food — the exact profile the liver-safety reviews favor. Nothing about this SKU invites fasted megadosing.
A 180-count bottle from a trusted brand at one capsule per day makes the cost per active mg of EGCG genuinely low. You're not paying a premium for the QC — it's a strong-value bottle that also happens to be the best-made.
“400 mg green tea extract standardized to 80% catechins / 50% EGCG (~200 mg EGCG per capsule).”
The Amazon listing and NOW's supplement facts state 400 mg of green tea extract standardized to a minimum 80% total catechins and 50% EGCG, which computes to ~200 mg of EGCG per capsule. The standardization and the resulting EGCG dose are stated plainly — the central claim holds.
“Low naturally-occurring caffeine.”
NOW discloses the caffeine as low and naturally-occurring (up to ~4 mg per capsule). Consistent with a catechin-concentrated extract; this is one of the lowest-caffeine picks in the lineup.
“Non-GMO Project Verified, GMP, vegan.”
The listing carries the Non-GMO Project Verified mark, NOW's GMP manufacturing, and a vegan/soy-free formula — consistent with NOW's established QC and accurate as stated.
“Supports fat metabolism / free-radical scavenging.”
Directionally supported: EGCG (with caffeine) produces a small fat-oxidation bump (Hursel 2009), and green tea catechins are antioxidants. But the weight effect is modest and adjunctive, not a product-specific proven outcome — treat it as a category claim.
~200 mg of EGCG per capsule is deliberately moderate. Because green tea extract's rare liver risk clusters around high, fasted doses above ~800 mg EGCG/day, a sane per-serving amount you take with food is the safest way to get the modest catechin effect. NOW's dose lands squarely in the well-studied range, which is a big part of why it ranks #1.
Many extracts bury the real EGCG number behind a big 'extract mg' and stay quiet on caffeine. NOW states the extract mg, the standardized catechin/EGCG %, and the low caffeine — the three numbers that determine both effect and safety. That transparency, from a Non-GMO-verified GMP brand, is exactly what this category needs more of.
At up to ~4 mg per capsule, this is one of the lowest-caffeine extracts in the lineup, so caffeine-sensitive buyers and afternoon dosers can take it without jitters or sleep disruption. The trade-off is a little less of the catechin-plus-caffeine synergy — easily solved by taking it alongside your morning coffee if you want that edge.
The value here is real and honest: a 180-count bottle at one capsule per day gives you a low cost per active mg of EGCG from a top-tier QC brand. You're not trading away testing or transparency to save money — you're getting both, which is unusual in a category that ranges from clean to sketchy.
If you want one green tea extract and you want it to be the sensible choice, NOW's EGCg 400 mg is it. You get ~200 mg of EGCG with very low caffeine per capsule — a well-studied, easy-to-dose amount — from a brand whose Non-GMO-verified, GMP-backed QC is among the most trusted anywhere, and the label honestly states the EGCG, catechin %, and caffeine so you can dose safely. It's not the highest-EGCG capsule here, and that's deliberate: a moderate dose taken with food is exactly the profile that keeps the rare liver risk rare. At a fair price in a 180-count bottle, it's the best-made, safest-to-dose option on the list. Take it with food, ideally with caffeine and around training, and hold the honest framing — a modest adjunct on top of a calorie deficit, not a fat burner. That's why it's #1.
Check NOW Foods · 400 mg extract, ~200 mg EGCG, 80% total catechins per veg capsule · 180 ct on AmazonThe pick to control caffeine without giving up standardization — ~25 mg caffeine stated and a fully decaffeinated SKU exists. Choose it if caffeine sensitivity or late-day dosing is your concern.
See it on the list →The highest standardized EGCG per capsule (~450 mg, 98% standardized, third-party tested). Choose it if you want maximum potency and will take it with food without doubling up.
See it on the list →A gentle, water-extracted budget option from a respected brand — a lower, milder catechin dose that's hard to overdo. Choose it if you want a soft entry point.
See it on the list →Meta-analysis of 11 studies: green tea catechins (typically with caffeine) were associated with a modest mean weight change of about −1.3 kg, moderated by habitual caffeine intake and ethnicity. The most-cited human evidence — a small adjunctive effect, not dramatic fat loss, and NOW's ~200 mg EGCG dose sits in the studied range.
Systematic review: green tea is generally safe, but liver-related adverse effects were associated with high-dose extract taken as a bolus on an empty stomach. Supports NOW's moderate, take-with-food profile as the lower-risk way to dose.
Systematic review of RCTs: liver-enzyme elevations were uncommon overall but clustered at higher EGCG doses, reinforcing a dose-dependent hepatic signal and the case for a sane per-serving dose like NOW's.
