NOW Foods EGCg Green Tea Extract 400 mg Review
#1 of 8 · Best overall✓ Label verified · Supplement Facts read Aug 27, 2026Real retailer photo, cut out. Label unedited.
Buy it. The honest default — a sane ~200 mg EGCG dose from the most trusted QC in the category. NOW EGCg 400 mg gives you ~200 mg of EGCG and very low caffeine per capsule from a Non-GMO Project Verified, GMP brand, with the EGCG, catechin %, and caffeine all on the label, in a 180-count bottle at low cost per active mg.
Strong value — trusted brand, 180-countLow cost per active mg (180 ct, 1 cap/day)
Why It Scores 9.0 — And The Label Line Behind Each Number
EGCG standardization & dose
35% of score400 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.
- EGCG per serving
- ~200 mg EGCG (1 cap; 400 mg extract @ 50% EGCG, 80% catechins)
Purity & third-party testing
30% of scoreThe 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.
- Label transparency
- EGCG mg, catechin %, and caffeine all disclosed
Safety & caffeine clarity
20% of scoreBest-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.
- Caffeine
- Low — up to ~4 mg per capsule (naturally occurring)
Value (cost per active mg)
15% of scoreA 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.
- Size
- 180 veg capsules (180 servings)
- Price
- Strong value — trusted brand, 180-count, low cost per active mg
- More Specs
- Form
- Veg capsule (standardized extract)
- Quality
- Non-GMO Project Verified, GMP, vegan, soy-free
Label verified. Every figure read from the Supplement Facts photo, Aug 27, 2026.
Marketing Claims Vs. Reality
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.
What Our Test Actually Found
A moderate dose is the feature, not a shortfall
~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.
The label tells you everything you need to dose safely
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.
Very low caffeine makes it flexible
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.
180 capsules makes the cost per active mg low
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.
Full analysis: all pros & cons (6), buy if / skip if
- NOW's respected QC — Non-GMO Project Verified, GMP, vegan, soy-free
- Honest, complete label — EGCG mg, catechin %, and caffeine all disclosed
- ~200 mg EGCG with very low caffeine — a sane dose that's easy to take safely with food
- 180-count bottle keeps the cost per active mg genuinely low
- ~200 mg EGCG is a moderate (not maximal) dose — by design, the safer choice
- Single, simple capsule — no decaf-vs-caffeinated choice within this SKU
- You want one green tea extract and you want it to be the safe, sensible choice
- You value a trusted brand's third-party-verified QC over a giant 'extract mg' headline
- You're caffeine-sensitive and want a very low-caffeine extract (~4 mg/cap)
- You want low cost per active mg from a 180-count bottle
- You specifically want the highest standardized EGCG per capsule — Nature's Wellness 98% (#6) delivers ~450 mg
- You want a stated ~25 mg caffeine dose for the catechin-plus-caffeine synergy — Life Extension (#2) or Zhou (#3)
- You expect dramatic fat loss from a pill — no green tea extract delivers that
NOW EGCg 400 mg gives you ~200 mg of EGCG and very low caffeine per capsule from a Non-GMO Project Verified, GMP brand, with the EGCG, catechin %, and caffeine all on the label, in a 180-count bottle at low cost per active mg. It's the safest-to-dose, best-made option — a moderate dose that's easy to take with food. Just hold honest expectations: a modest adjunct to a deficit, not a fat burner.
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.
The best-made, safest-to-dose extract — buy it as your honest default.
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.
If This Doesn’t Fit — Try These
02Life Extension Mega Green Tea Extract
Life Extension's Mega Green Tea Extract is the pick for anyone who wants to control caffeine without giving up a well-standardized dose.
06Nature's Wellness Green Tea Extract
Nature's Wellness is the pick for someone who specifically wants the maximum standardized EGCG per capsule.
05Jarrow Green Tea 500 mg
Jarrow's Green Tea is the gentle, water-extracted option and a genuinely sensible budget buy.
Quick Answers
How much EGCG is actually in one NOW EGCg capsule?
About 200 mg. Each capsule is 400 mg of green tea extract standardized to 80% total catechins and 50% EGCG, which works out to roughly 200 mg of EGCG per capsule. That's the number that matters — not the '400 mg extract' headline. It's a moderate, well-studied daily amount that sits comfortably below EFSA's 800 mg EGCG/day liver-safety flag, so a single capsule with food is an easy, sane dose.
Is it caffeinated?
Barely. The naturally-occurring caffeine is low — up to about 4 mg per capsule — because NOW's extract is concentrated for catechins rather than caffeine. For context, a cup of brewed green tea has roughly 25-45 mg. That makes this an easy pick if you're caffeine-sensitive or dosing later in the day, though it also means you lose a little of the catechin-plus-caffeine fat-oxidation synergy; pair it with your morning coffee if you want that.
Should I take it with food?
Yes — treat this as a rule, not a suggestion. The rare liver-injury cases linked to green tea extract cluster around high doses taken on an empty stomach. NOW's ~200 mg EGCG is already a moderate dose, and taking it with a meal lowers the (already small) risk further. Don't stack a second high-EGCG capsule on top chasing faster results.
Will it actually help me lose weight?
Modestly, and only as an adjunct. The most-cited meta-analysis (Hursel 2009) associated green tea catechins with about 1.3 kg of weight change, and the effect is clearest alongside caffeine and exercise. Use NOW EGCg as a small, sensibly-dosed helper on top of a real calorie deficit — not as a fat burner.
Sources & Further Reading
3 peer-reviewed sources, each linked to PubMed
- [1] Hursel 2009 PMID 19597519 — The effects of green tea on weight loss and weight maintenance: a meta-analysis. 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.
- [2] Hu 2018 PMID 29580974 — The safety of green tea and green tea extract consumption in adults — Results of a systematic review. 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.
- [3] Isomura 2016 PMID 27188915 — Liver-related safety assessment of green tea extracts in humans: a systematic review of randomized controlled trials. 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.
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