SynthesisNutrients2024
Mediterranean Diet Adherence, Gut Microbiota and Parkinson's Disease: A Systematic Review.
Synthesis in Nutrients, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 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.
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Who cites it
15 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- When bad turns good: a systematic review on cholesterol and LDL in longitudinal patient cohorts with Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026Pooled it
- Mediterranean diet and gut microbiota: impact on memory and other cognitive functions: a systematic review.Frontiers in molecular neuroscience · 2026Pooled it
- A randomized safety and feasibility crossover trial of two Mediterranean-ketogenic interventions in individuals with Parkinson's disease.Journal of Parkinson's disease · 2026Trial
- Trial
- Review
- Mediterranean Pattern Diet in Multiple Sclerosis: A Review Focusing on Immunometabolites.Current neuropharmacology · 2026Review
- The gut microbiota-short-chain fatty acid-inflammation axis in Parkinson's disease motor dysfunction: mechanisms and future of dietary interventions.Frontiers in neurology · 2026Review
- TLR4/NF-κB signaling-mediated neuroinflammation is associated with gut microbiota dysbiosis in a mouse model of Parkinson's disease.Frontiers in immunology · 2026Article
- Parkinson's Disease: The Epidemiology, Risk Factors, Molecular Pathogenesis, Prevention, and Therapy.MedComm · 2025Review
- Environmental toxins in neurodegeneration - a narrative review.Neurological research and practice · 2025Review
- A Potential Role of Natural Bioactive Compounds Found in Food in the Prevention of Idiopathic Parkinson's Disease.Nutrients · 2025Review
- Association of Mediterranean Diet Adherence With Chronic Constipation and Chronic Diarrhea: Findings From NHANES.Food science & nutrition · 2025Article
- A new method for developing an efficient, regional semi-quantitative food frequency questionnaire.Asia Pacific journal of clinical nutrition · 2025Article
- The Gut-Brain Axis in Parkinson disease: Emerging Concepts and Therapeutic Implications.Movement disorders clinical practice · 2025Review
- Nutritional and dietary clinical trials for Parkinson's disease: a narrative review.Journal of neural transmission (Vienna, Austria : 1996) · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThere is mounting evidence to suggest that high adherence to the Mediterranean diet (MedDiet) may reduce the risk of age-related diseases, including Parkinson's disease (PD). However, evidence for the role of the MedDiet in the relief of motor and non-motor symptoms in patients with PD remains limited and inconclusive. We provide a systematic review of the effects of the MedDiet on the clinical features of PD using data from randomised controlled trials (RCT) and prospective observational studies.
methodsWe searched MEDLINE, EMCare, EMBASE, Scopus and PubMed from inception until June 2023. Reference lists and the grey literature were also searched. Human studies with no restriction on language or publication date, examining associations between MedDiet adherence and the symptoms of PD, were included. We employed standard methodological procedures for data extraction and evidence synthesis and used the Quality Criteria Checklist for assessing the studies included.
resultsFour studies from three unique cohorts, including two observational studies (n = 1213) and one RCT (n = 70), met the inclusion criteria. Despite the short study duration reported in all included reports, high MedDiet adherence was associated with changes in the gut microbiota (e.g., increased abundance of short-chain fatty acids producers). These outcomes correlated with a significant improvement in several non-motor symptoms including cognitive dysfunction, dyspepsia and constipation. However, there were no significant changes in diarrhoea, gastrointestinal reflux, abdominal pain and motor symptoms.
conclusionHigh MedDiet adherence may be associated with significant improvement in global cognition and several gastrointestinal symptoms, possibly associated to changes in gut microbiota composition. Further studies are warranted to clarify potential cause-and-effect relationships and to elucidate MedDiet impact on motor symptoms.
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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.