ReviewNutrition & metabolism2020
Effects of green tea consumption on glycemic control: a systematic review and meta-analysis of randomized controlled trials.
Review in Nutrition & metabolism, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
19 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.
- Tea intake and cardiovascular disease: an umbrella review.Annals of medicine · 2021Pooled it
- Matcha as a Source of Bioactive Compounds: A Review of Health-Promoting Properties and Potential Applications.Nutrients · 2026Review
- Harnessing Phytochemicals and Nanotechnology Synergy for Molecular, Epigenetic, and Microbiota-Driven Regulation in Type 2 Diabetes Mellitus.Pharmaceutics · 2026Review
- Herbal adjuvant therapy with a combination of Green Tea, Persian Borage, and Purslane to reduce antipsychotic-induced weight gain in Schizophrenia: A randomized controlled trial.Avicenna journal of phytomedicine · 2026Article
- Mechanistic Insights into Antioxidant Interventions Targeting Obesity-Induced Oxidative Stress in the Pathogenesis and Complications of Type 2 Diabetes Mellitus.Current issues in molecular biology · 2025Review
- A Comprehensive Review of Bioactive Tannins in Foods and Beverages: Functional Properties, Health Benefits, and Sensory Qualities.Molecules (Basel, Switzerland) · 2025Review
- The role of tea in managing cardiovascular risk factors: potential benefits, mechanisms, and interventional strategies.Frontiers in nutrition · 2025Review
- Unraveling tea and coffee consumption effects on cardiovascular diseases risk factors: A narrative review.Health science reports · 2024Article
- The potential of therapeutic strategies targeting mitochondrial biogenesis for the treatment of insulin resistance and type 2 diabetes mellitus.Archives of pharmacal research · 2024Review
- Tea's anti-obesity properties, cardiometabolic health-promoting potentials, bioactive compounds, and adverse effects: A review focusing on white and green teas.Food science & nutrition · 2023Review
- Therapeutic Activity of Green Tea Epigallocatechin-3-Gallate on Metabolic Diseases and Non-Alcoholic Fatty Liver Diseases: The Current Updates.Nutrients · 2023Review
- Effects of antioxidants on diabetic kidney diseases: mechanistic interpretations and clinical assessment.Chinese medicine · 2023Review
- The effect of green tea (Frontiers in nutrition · 2023Article
- Consumer Choices and Habits Related to Tea Consumption by Poles.Foods (Basel, Switzerland) · 2022Article
- Review
- Dietary Supplements for Weight Management: A Narrative Review of Safety and Metabolic Health Benefits.Nutrients · 2022Review
- The effects of green tea supplementation on cardiovascular risk factors: A systematic review and meta-analysis.Frontiers in nutrition · 2022Review
- Article
- Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe results of human clinical trials investigating the effects of green tea on glycemic control are inconsistent.
methodsWe conducted a systematic review and meta-analysis of RCTs that examined the effects of green tea supplementation on glycemic control. A literature search in PubMed, Embase, and Cochrane Library databases for RCTs that investigated the effect of green tea consumption on glycemic control was performed up to February 2020. A random-effects model was used to estimate weighted mean difference (WMD) with 95% confidence intervals (CIs).
resultsTwenty-seven trials involving 2194 subjects were included in the meta-analysis. The pooled results showed that green tea significantly lowered fasting blood glucose by - 1.44 mg/dL (95%CI:-2.26, - 0.62 mg/dL;
conclusionsIn short-term trials, green tea supplementation significantly reduced fasting glucose, but had no significant effect on fasting insulin and HbA
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.