green tea and Reduced Blood Cholesterol

Research synthesisModerate evidenceSmall effect4 studies · 3 beneficial · 1 neutral · 0 harmful

Across 4 meta-analyses, 3 reported beneficial effects on total cholesterol with predominantly small effect sizes (one moderate), while 1 found no significant effect. The most studied populations are postmenopausal women and overweight/obese individuals. No consistent dose range or form was identified.

Studied populations: postmenopausal women, overweight and obese individuals

Caveats: Evidence base is small (only 4 studies) — conclusions should be considered preliminary. One meta-analysis showed no significant effect in overweight/obese individuals, suggesting possible heterogeneity. Dose and form were not consistently reported.

Generated Jun 15, 2026

4 of 4 papersPopulation:

Effects of green tea use on the metabolic profile of postmenopausal women: systematic review and meta-analysis.
- 2026-06
- Meta-Analysis · n = 109
- European journal of nutrition 65(4)
- - Isabella Heloísa Rodrigues Zago
  - Laura Colonetti
  - Eduarda Letícia Balbinot
  - Igor Specht Taschetto
  - Antonio José Grande
  - Maria Inês da Rosa
  - Tamy Colonetti
- PubMed: 42228178
- DOI: 10.1007/s00394-026-04005-8
6 Insights on
- Reduced Blood Cholesterol
- High evidence
- Rigorous Journal
- Elderly
The meta-analysis showed that green tea reduced total cholesterol levels in postmenopausal women (mean difference [MD]: -7.03; 95% confidence interval [CI]: -13.24 to - 0.82; p = 0.03; I² = 0%; four studies; 1,109 participants; low-quality evidence).
Effect
Beneficial
Effect size
Small
Significant
Yes
Dose
Not specified in abstract
Effect of the herbal medicines in obesity and metabolic syndrome: A systematic review and meta-analysis of clinical trials.
- 2019-12-02
- Meta-Analysis · n = 279
- Phytotherapy research : PTR 34(3)
- - Moloud Payab
  - Shirin Hasani-Ranjbar
  - Nazila Shahbal
  - Mostafa Qorbani
  - Azadeh Aletaha
  - Hamed Haghi-Aminjan
  - Akbar Soltani
  - Fatemeh Khatami
  - Shekoufeh Nikfar
  - Shokoufeh Hassani
  - Mohammad Abdollahi
  - Bagher Larijani
- PubMed: 31793087
- DOI: 10.1002/ptr.6547
4 Insights on
- Reduced Blood Cholesterol
- High evidence
- Clinical
Meta-analysis showed that intake of green tea resulted in a significant improvement in ... total cholesterol, ([SMD]: -0.43 [-0.77, -0.09])
Effect
Beneficial
Effect size
Small
Significant
Yes
The Association Between Green Tea Intake and Metabolic Syndrome: A Systematic Review and Meta-analysis of Randomized Controlled Trials.
- 2025-10-09
- Meta-Analysis
- Clinical therapeutics 47(12)
- - Sahar Ghoflchi
  - Hadiseh Mohammadi
  - Maryam Teimouri
  - Masoud Imani
  - Hossein Hosseini
- PubMed: 41073208
- DOI: 10.1016/j.clinthera.2025.09.011
8 Insights on
- Reduced Blood Cholesterol
- High evidence
Among women, green tea improved total cholesterol (SMD: -0.79)
Effect
Beneficial
Effect size
Moderate
Significant
Yes
Dose
<3000 mg/day
Does green tea catechin enhance weight-loss effect of exercise training in overweight and obese individuals? a systematic review and meta-analysis of randomized trials.
- 2024-09-30
- Meta-Analysis
- Journal of the International Society of Sports Nutrition 21(1)
- - Farhad Gholami
  - Jose Antonio
  - Mohadeseh Iranpour
  - Jason Curtis
  - Flavia Pereira
- PubMed: 39350601
- DOI: 10.1080/15502783.2024.2411029
7 Insights on
- Reduced Blood Cholesterol
- High evidence
- Clinical
total cholesterol SMD = -0.54, CI -0.85 to 0.13
Effect
Neutral
Effect size
Small
Significant
No

green tea and Reduced Blood Cholesterol

Effects of green tea use on the metabolic profile of postmenopausal women: systematic review and meta-analysis.

Effect of the herbal medicines in obesity and metabolic syndrome: A systematic review and meta-analysis of clinical trials.

The Association Between Green Tea Intake and Metabolic Syndrome: A Systematic Review and Meta-analysis of Randomized Controlled Trials.

Does green tea catechin enhance weight-loss effect of exercise training in overweight and obese individuals? a systematic review and meta-analysis of randomized trials.