SynthesisJournal of general internal medicine2009
Tea consumption and risk of type 2 diabetes: a meta-analysis of cohort studies.
Synthesis in Journal of general internal medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 2 of them syntheses that pooled it.
What it found
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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
36 citing papers in PubMed, 2 syntheses or guidelines pooled it, 107 citations in OpenAlex.
- Tea consumption and risk of type 2 diabetes mellitus: a systematic review and meta-analysis update.BMJ open · 2014Pooled it
- Tea consumption and risk of stroke: a dose-response meta-analysis of prospective studies.Journal of Zhejiang University. Science. B · 2012Pooled it
- Trial
- Trial
- Oolong tea does not improve glucose metabolism in non-diabetic adults.European journal of clinical nutrition · 2011Trial
- Comprehensive Analysis of Brewed Tea: Boron Content, Total Antioxidant and Oxidant Capacity, Oxidative Stress, and pH value.Biological trace element research · 2026Article
- Protective Role of Dietary Polyphenols in the Management and Treatment of Type 2 Diabetes Mellitus.Nutrients · 2025Review
- Revisiting dietary proanthocyanidins on blood glucose homeostasis from a multi-scale structural perspective.Current research in food science · 2024Review
- Gut microbiota-mediated associations of green tea and catechin intakes with glucose metabolism in individuals without type 2 diabetes mellitus: a four-season observational study with mediation analysis.Archives of microbiology · 2023Observational
- Metabolic Disorders in Patients with Chronic Hepatitis B Virus Infection: Coffee as a Panacea? (ANRS CO22 Hepather Cohort).Antioxidants (Basel, Switzerland) · 2022Article
- Herbal tea, a novel adjuvant therapy for treating type 2 diabetes mellitus: A review.Frontiers in pharmacology · 2022Review
- Identifying Glucose Metabolism Status in Nondiabetic Japanese Adults Using Machine Learning Model with Simple Questionnaire.Computational and mathematical methods in medicine · 2022Article
- Associations of tea consumption with blood pressure progression and hypertension incidence.Journal of geriatric cardiology : JGC · 2021Article
- Impact of green tea on the deleterious cardiometabolic effects of 7-days unhealthy lifestyle in young healthy males.Physiological reports · 2021Article
- The Intrinsic Virtues of EGCG, anMolecules (Basel, Switzerland) · 2020Review
- Effects of green tea consumption on glycemic control: a systematic review and meta-analysis of randomized controlled trials.Nutrition & metabolism · 2020Review
- Occurrence and Risk of Metal(loid)s inPlants (Basel, Switzerland) · 2019Article
- Dietary antioxidant capacity and risk of type 2 diabetes mellitus, prediabetes and insulin resistance: the Rotterdam Study.European journal of epidemiology · 2019Article
- Effects and Mechanisms of Tea for the Prevention and Management of Diabetes Mellitus and Diabetic Complications: An Updated Review.Antioxidants (Basel, Switzerland) · 2019Review
- Role ofNutrition & metabolism · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTea consumption has been extensively studied in relation to various diseases, several epidemiologic studies have been performed to investigate the association of tea consumption with type 2 diabetes; however, the results of these studies were not entirely consistent.
objectiveTo conduct a meta-analysis of studies that assessed the association of tea consumption and the risk of type 2 diabetes. RESEARCH DESIGN AND
methodsWe performed a systematic literature search through November 2008 in PUBMED, MEDLINE, EMBASE, and Cochrane Database of Systematic Reviews. The search was limited to English-language studies. Studies were excluded if they were type 1 diabetes, animal studies. Nine cohort studies were identified by two authors, and summary relative risks (RRs) were calculated using a random-effects model.
resultsWe identified nine cohort studies, including 324,141 participants and 11,400 incident cases of type 2 diabetes with follow-up ranging from 5 to 18 years. The summary adjusted RR did not show that tea consumption was associated with a reduced type 2 diabetes risk (RR, 0.96; 95% confidence interval (CI), 0.92-1.01). Evidence from the results of our stratified analyses revealed that tea consumption > or =4 cups per day (RR, 0.8; 95% CI, 0.7-0.93) might play a role in the prevention of type 2 diabetes. However, no statistically significant association was observed for sex and the follow-up durations stratified between tea consumption and type 2 diabetes.
conclusionsThis meta-analysis indicates that tea consumption > or =4 cups per day may lower the risk of type 2 diabetes.
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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.