# Green Tea Extract Weight Loss Meta-analysis: What the Evidence Says
Canonical: https://www.migaku.app/guides/green-tea-extract-weight-loss-meta-analysis-evidence-review
Category: evidence-review
Summary: Green Tea Extract Weight Loss Meta-analysis has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass
Last reviewed: 2026-05-27
Reviewed by: Migaku Evidence Review
# Green Tea Extract Weight Loss Meta-analysis: What the Evidence Says

## Quick Answer

Green Tea Extract Weight Loss Meta-analysis has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass are mixed biomedical and public-health sources, so conclusions should be framed as evidence-aware guidance rather than medical advice.

## Key Takeaways

- This page is generated only from sources stored in the Migaku evidence knowledge base.
- Current evidence mix: 1 narrative review, 1 preclinical study.
- Claims should be interpreted with the source type, study design, population, and publication date in mind.
- This article is educational and does not replace care from a qualified clinician.

## Evidence Map

| Source | Evidence type | Level | Date | Identifier |
| --- | --- | ---: | --- | --- |
| Obesity and Natural Products: Mechanisms, Therapeutic Potential, and Future Directions | narrative review | 3 | 2026-03-11 | 10.1002/fsn3.71575 |
| Consumer Perceptions Influence Supplement Choice: A Narrative Review of Clinically Studied Weight-Management Supplements in Obesity | preclinical study | 4 | 2026-02-22 | 10.3390/nu18040702 |

## What The Sources Report

- Dysregulated adipogenesis in obesity involves excessive preadipocyte recruitment and differentiation, leading to increased adipocyte number (hyperplasia) and hypertrophy. [Marie Ohoud M. (2026); evidence level 3]
- In obesity, lipolytic capacity is suppressed through multiple mechanisms including impaired sympathetic nervous system signaling and reduced expression of lipolytic enzymes (Thorp and Schlaich ). [Marie Ohoud M. (2026); evidence level 3]
- Gelidium Garcinia cambogia The World Health Organization defines overweight and obesity as abnormal or excessive fat accumulation that presents health risk to health. [Lee Hyeonseok (2026); evidence level 4]
- The prevalence of obesity in South Korea has steadily increased over the past decade, reaching approximately 38% in 2022, although the prevalence of severe obesity (body mass index [BMI] ≥ 40 kg/m) increased by 2.6-fold when compared with that in 2013. [Lee Hyeonseok (2026); evidence level 4]

## How To Read This Evidence

Evidence level 1 generally reflects systematic reviews or meta-analyses. Level 2 includes randomized trials, guidelines, or public-health guidance. Level 3 usually reflects observational or narrative-review evidence. Level 4 is weaker or early-stage evidence. The level is a sorting aid, not a final quality grade.

## Practical Interpretation

For green tea extract weight loss meta-analysis, the current source set is useful for orientation, but it is not yet broad enough for strong claims. Use cautious language and keep conclusions close to the cited sources.

## Limits Of This First Pass

This is a small-batch MVP article. It uses the first ingested sources for this topic and should be expanded with more targeted searches, license review, and human editorial checks before being treated as a definitive review.

## References

- Marie Ohoud M. (2026). Obesity and Natural Products: Mechanisms, Therapeutic Potential, and Future Directions. DOI: 10.1002/fsn3.71575. PMCID: PMC13093847. PMID: 42016235. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC13093847/
- Lee Hyeonseok (2026). Consumer Perceptions Influence Supplement Choice: A Narrative Review of Clinically Studied Weight-Management Supplements in Obesity. DOI: 10.3390/nu18040702. PMCID: PMC12942658. PMID: 41754218. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC12942658/

## Safety Note

Health information can change, and individual risk depends on medical history, medications, pregnancy status, age, and diagnosis. Talk with a qualified clinician before changing treatment, supplement, or medication routines.