Supplements · Metabolic & Cardiometabolic

green tea decreases LDL cholesterol

In plain terms: Does green tea lower cholesterol?

Strong support Supplements 🔬 Includes disconfirming

RefutedContestedStrong support

consensus score 0.70

Modestly, yes. Across many trials green tea nudges LDL and total cholesterol down a small amount (roughly 5-9 mg/dL LDL). It is a minor but fairly consistent effect - a helpful habit, not a replacement for cholesterol treatment.

📅 Last reviewed: 2026-07-15 ⓘ

Evidence ladder

How far up the ladder this claim has climbed. A high consensus on a low rung means "consistent so far," not "proven in people."

Top evidence so far: All trials, pooled (Meta-analysis)

MechanismIn-vitroAnimalObservationalRCTMeta-analysis

How the studies fall

14 support 1 contradict 1 tested null 1 mixed · 17 sources, 15 independent groups · 1 superseded — pooled inside a review, counted once

What the evidence shows

Green tea modestly but fairly consistently lowers total and LDL cholesterol across many RCTs and meta-analyses (typically ~5-9 mg/dL LDL). A few recent analyses find no effect in specific subgroups, but with fuller sourcing the weight of evidence supports a small, real reduction - helpful but minor, not a substitute for cholesterol treatment.

Cochrane agrees with us see how our grade compares ▾

Cochrane review 2013 · not GRADE-rated per outcome Agrees with our grade

authors advise 'some caution' (few trials, risk of bias, green-tea LDL result not stable to sensitivity analysis)

“The limited evidence suggests that tea has favourable effects on CVD risk factors, but due to the small number of trials contributing to each analysis the results should be treated with some caution. Green tea produced statistically significant reductions in LDL cholesterol (MD -0.64 mmol/L, 95% CI -0.77 to -0.52; 4 trials, 327 participants), but only a small number of studies contributed and the results were not stable to sensitivity analysis.”

Why we agree: we reached the same direction independently, from our own appraisal of 17 sources. Two methods landing in the same place is a stronger signal than either alone.

What is Cochrane, and why trust it?

Cochrane produces systematic reviews: instead of running a new study, they gather every trial ever done on a question, judge how well each was run, and pool the results. They take no commercial or industry funding, which is why the medical community treats their reviews as a gold standard — and why we check our own verdicts against theirs.

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The evidence (18)

Source	Grade	Stance	Quality	Finding
Zheng XX et al. 2011 · Am J Clin Nutr	meta-analysis	supports	high	Meta 14 RCTs: total cholesterol -7.2 mg/dL and LDL -2.19 mg/dL (modest); no HDL change.
Gholami A et al. 2024 · J Int Soc Sports Nutr	meta-analysis	tested-null	moderate	Meta 10 RCTs: green tea + exercise gave no significant additional lipid benefit vs exercise alone.
Fan J et al 2026 · study_type: mechanism	mechanism	supports	moderate	Mechanistic review of EGCG lipid metabolism: EGCG interacts with phosphatidylcholine to disrupt cholesterol's mixed-micelle solubilization, inhibiting intestinal cholesterol absorption, alongside AMPK-mediated lipogenesis/oxidation effects.
Erba D et al. 2005 · J Nutr Biochem	RCT	supports	low	Small 42-day trial (~250 mg catechins/d): LDL fell 119.9 -> 106.6 mg/dL (p<.05).
Liu C et al 2025 · medRxiv	meta-analysis	supports	moderate	Network meta-analysis of 44 RCTs on green tea, exercise, and combinations for overweight/obesity; green tea combined with aerobic exercise was rated optimal for reducing TC and LDL among the compared interventions.
Basu A et al. 2010 · J Am Coll Nutr	RCT	supports	moderate	RCT (metabolic syndrome): green tea reduced LDL/TC and lipid peroxidation.
Sławińska P et al 2026 · study_type: observational	observational	supports	low	Narrative review of matcha/green tea catechins covering glucose, lipid profile, weight, and microbiota effects broadly across in vitro/in vivo studies; no pooled LDL/TC effect size given.
Maron DJ et al. 2003 · Arch Intern Med	RCT	supports	moderate	RCT n=240: theaflavin-enriched green tea extract TC -11.3%, LDL -16.4% (theaflavin-enriched product).
Kosik-Bogacka DI et al 2025 · study_type: observational	observational	supports	low	Narrative review of matcha/EGCG human and animal trials in MASLD; reports beneficial effects on body weight, cholesterol levels, and liver metabolism/function noted across studies, even short-term.
Kim A et al. 2011 · J Am Diet Assoc	meta-analysis	supports	high	Meta 20 RCTs (n=1415): TC -5.46, LDL -5.30 mg/dL; no HDL/TG change.
Xu R et al. 2020 · Nutr J	meta-analysis	supports	high	Meta RCTs: green tea significantly reduced total cholesterol and LDL.
Ghoflchi S et al. 2025 · Clin Ther	meta-analysis	contradicts	moderate	Meta (metabolic syndrome): overall TC (p=.19) and LDL (p=.25) NON-significant; benefit only in subgroups (women, <8 wk, <3000 mg/d).
Wang X et al. 2023 · Heliyon	meta-analysis	mixed	low	Meta 11 RCTs (overweight/obese): reduced waist & triglycerides, raised HDL, but NO significant LDL or total-cholesterol effect.
Chen IJ et al. 2016 · Clin Nutr	RCT	supports	moderate	RCT: high-dose EGCG (857 mg/d) reduced LDL alongside weight loss in central obesity. ↩ SUPERSEDED — pooled in the review above, counted once
Pormlikul T et al 2025 · study_type: RCT	RCT	supports	moderate	6-week double-blind placebo-controlled RCT in 60 dyslipidemia adults (n=30 green tea, n=30 placebo); total cholesterol fell 4.96% and LDL fell 7.98% in the green tea group vs placebo.
Quezada-Fernandez P et al. 2019 · Int J Food Sci Nutr	RCT	supports	low	Small RCT (n=20 T2D on statins): improved lipid profile + arterial stiffness.
Hoseini E et al 2025 · study_type: animal	animal	supports	moderate	Rat study (14 groups) co-administering green tea catechins ECG/EGCG with olanzapine; olanzapine raised LDL/cholesterol/TG, and ECG/EGCG co-treatment suppressed olanzapine-induced elevation of plasma lipids at multiple doses.
Momose Y et al. 2016 · Int J Food Sci Nutr	meta-analysis	supports	high	Systematic review 17 RCTs: EGCG reduced LDL -9.29 mg/dL.

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