SynthesisAdvances in nutrition (Bethesda, Md.)2025
Plant-Based Diets and Cognitive Outcomes: A Systematic Review and Meta-analysis.
Synthesis in Advances in nutrition (Bethesda, Md.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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
7 citing papers in PubMed.
- Dietary (Poly)phenol Intake, Inflammatory Biomarkers, and Mild Cognitive Impairment in Italian Adults.Antioxidants (Basel, Switzerland) · 2026Article
- Identification and phenotypic profiling of subgroups with distinct cognitive aging trajectories.GeroScience · 2026Article
- Oxidative Stress in Alzheimer's Disease: Can Dietary Interventions Provide Neuroprotection?Nutrients · 2026Review
- Development of a clinical nomogram to assess the risk of cognitive impairment in community-dwelling middle-aged and older adults.BMC neurology · 2026Article
- Article
- Prevention of cognitive decline and dementia: Current evidence on lifestyle factors and dietary patterns.EXCLI journal · 2026Review
- Environmental Factors and Risk of Early-Onset Dementia: A Population-Based Case-Control Study.Neuroepidemiology · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Although plant-rich dietary patterns like the Mediterranean and Mediterranean-DASH Intervention for Neurodegenerative Delay diets have been linked to cognitive benefits, the role of predominantly plant-based diets is less understood. This systematic review aimed to evaluate the association between plant-based diets and cognitive outcomes. A literature search was conducted in Medline and Embase using keywords related to plant-based diets (e.g., "vegetarian diet") and cognitive outcomes (e.g., "dementia"). Studies of any design were eligible. Reviewers independently screened studies, extracted data, and assessed quality using the Newcastle-Ottawa Scale. Meta-analyses were conducted on prospective studies that examined the same dietary exposure and cognitive outcome, using fixed-effects regression models. Twenty-two studies were included, with considerable variability in methodologies and outcomes. Plant-based diets were defined either categorically (e.g., vegetarian compared with nonvegetarian), or using indices of adherence, such as the healthful plant-based diet index (hPDI), with higher scores reflecting higher adherence. Two meta-analyses, each based on 2 high-quality prospective cohort studies, examined associations between plant-based diet indices and cognitive outcomes. For cognitive impairment, pooled odds ratios (95% confidence interval) for highest compared with lowest quartiles were 0.61 (0.55, 0.68; I
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What Socratic 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 Socratic graph.