SynthesisNutrients2019
Green Tea Intake and Risks for Dementia, Alzheimer's Disease, Mild Cognitive Impairment, and Cognitive Impairment: A Systematic Review.
Synthesis in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 4 of them syntheses 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
54 citing papers in PubMed, 4 syntheses or guidelines pooled it, 121 citations in OpenAlex.
- Berry Consumption and Its Role in the Modulation of Obesity and Mild Cognitive Impairment.Nutrients · 2026Pooled it
- Effect of nutrition in Alzheimer's disease: A systematic review.Frontiers in neuroscience · 2023Pooled it
- Tea intake or consumption and the risk of dementia: a meta-analysis of prospective cohort studies.PeerJ · 2023Pooled it
- Medicinal Plants and Their Impact on the Gut Microbiome in Mental Health: A Systematic Review.Nutrients · 2022Pooled it
- Compositional Diversity and Functional Interactions of Bioactive Compounds in Japanese Green Tea: Focus on Matcha, Sencha, and Gyokuro.Molecules (Basel, Switzerland) · 2026Review
- Cross-Category Screening of Food Samples for Amyloid-β42 Aggregation-Inhibitory Activity Using a Microliter-Scale High-Throughput Screening System with Quantum-Dot-Labeled Aβ.Foods (Basel, Switzerland) · 2026Article
- Green tea catechin EGCG attenuates hippocampal atrophy and cognitive impairment in obesity via autophagy signaling.NPJ science of food · 2026Article
- Feasibility of identifying factors related to Alzheimer's disease and related dementia in real-world data.JAMIA open · 2026Review
- Menstrual and reproductive factors and risk of Alzheimer's disease in elderly women: a cohort study in Eastern China.Scientific reports · 2026Article
- Multifaceted role of nitric oxide in vascular dementia.Medical gas research · 2025Review
- Tea consumption, cardiovascular diseases risk factors, sleep and mental health status among diabetic women.Journal of diabetes and metabolic disorders · 2025Article
- Green Tea Mitigates the Hallmarks of Aging and Age-Related Multisystem Deterioration.Aging and disease · 2025Review
- Impact of tea and coffee consumption during pregnancy on children's cognitive development.Scientific reports · 2025Article
- Lifestyle interventions for dementia risk reduction: A review on the role of physical activity and diet in Western and Asian Countries.The journal of prevention of Alzheimer's disease · 2025Review
- Effects of nutritional counseling on dietary patterns in patients with mild cognitive impairment: insights from the BrainFit-Nutrition study.Frontiers in nutrition · 2025Article
- Associations of Coffee and Tea Consumption on Neural Network Connectivity: Unveiling the Role of Genetic Factors in Alzheimer's Disease Risk.Nutrients · 2024Article
- Trends and hotspots in tea and Alzheimer's disease research from 2014 to 2023: A bibliometric and visual analysis.Heliyon · 2024Review
- The impact of diet quality on cognitive ability of Chinese older adults: evidence from the China Health and Nutrition Survey (CHNS).BMC geriatrics · 2024Article
- Genetically determined dietary habits and risk of Alzheimer's disease: a Mendelian randomization study.Frontiers in nutrition · 2024Article
- Anthocyanins: Molecular Aspects on Their Neuroprotective Activity.Biomolecules · 2023Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Dementia has become a major issue that requires urgent measures. The prevention of dementia may be influenced by dietary factors. We focused on green tea and performed a systematic review of observational studies that examined the association between green tea intake and dementia, Alzheimer's disease, mild cognitive impairment, or cognitive impairment. We searched for articles registered up to 23 August 2018, in the PubMed database and then for references of original articles or reviews that examined tea and cognition. Subsequently, the extracted articles were examined regarding whether they included original data assessing an association of green tea intake and dementia, Alzheimer's disease, mild cognitive impairment, or cognitive impairment. Finally, we included three cohort studies and five cross-sectional studies. One cohort study and three cross-sectional studies supported the positive effects of green tea intake. One cohort study and one cross-sectional study reported partial positive effects. The remaining one cohort study and one cross-sectional study showed no significant association of green tea intake. These results seem to support the hypothesis that green tea intake might reduce the risk for dementia, Alzheimer's disease, mild cognitive impairment, or cognitive impairment. Further results from well-designed and well-conducted cohort studies are required to derive robust evidence.
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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.