Evidence map›Paper›PMID 34579042›Full record

ReviewNutrients2021

The Effects of Intermittent Fasting on Brain and Cognitive Function.

Jip Gudden, Alejandro Arias Vasquez, Mirjam Bloemendaal

Registry-linked trialOpen access · goldAbstract readReview
In one paragraph

Review in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06429124 (Time-Restricted Eating in Alzheimer's Disease), which is not on this map. Cited by 92 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed, 3 pooled it
11.0field-weighted citation impact, top 1% of its field
1 · What the graph read from 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.

2 · The registry

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.

NCT06429124 narecruitingnot on this mapstarted 2023, after this paper: background citation

Time-Restricted Eating in Alzheimer's Disease : The T.R.E.A.D Trial

TypeinterventionalSponsorSt. Joseph's Hospital and Medical Center, PhoenixRan2023 to 2026Enrolled30ConditionsMild Cognitive Impairment (MCI)ArmsDietary Intervention
3 · Its place in the literature

Who cites it

92 citing papers in PubMed, 3 syntheses or guidelines pooled it, 148 citations in OpenAlex.

  1. Pooled it
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  17. Ferroptotic neurodegeneration and diet: a narrative review.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  18. Review
  19. Immune dysfunction in Alzheimer disease.Nature reviews. Neuroscience · 2026
    Review
  20. Intermittent Fasting andNutrients · 2026
    Article

32 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 2 countries.

Jip GuddenDepartment of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands.
Alejandro Arias VasquezDepartment of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands.
Mirjam BloemendaalDepartment of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands.
Radboud University Medical Center · NLRadboud University Nijmegen · NL

Funding

Horizon 2020 728018
6 · The paper itself

Abstract

The importance of diet and the gut-brain axis for brain health and cognitive function is increasingly acknowledged. Dietary interventions are tested for their potential to prevent and/or treat brain disorders. Intermittent fasting (IF), the abstinence or strong limitation of calories for 12 to 48 h, alternated with periods of regular food intake, has shown promising results on neurobiological health in animal models. In this review article, we discuss the potential benefits of IF on cognitive function and the possible effects on the prevention and progress of brain-related disorders in animals and humans. We do so by summarizing the effects of IF which through metabolic, cellular, and circadian mechanisms lead to anatomical and functional changes in the brain. Our review shows that there is no clear evidence of a positive short-term effect of IF on cognition in healthy subjects. Clinical studies show benefits of IF for epilepsy, Alzheimer's disease, and multiple sclerosis on disease symptoms and progress. Findings from animal studies show mechanisms by which Parkinson's disease, ischemic stroke, autism spectrum disorder, and mood and anxiety disorders could benefit from IF. Future research should disentangle whether positive effects of IF hold true regardless of age or the presence of obesity. Moreover, variations in fasting patterns, total caloric intake, and intake of specific nutrients may be relevant components of IF success. Longitudinal studies and randomized clinical trials (RCTs) will provide a window into the long-term effects of IF on the development and progress of brain-related diseases.

Indexed as

FastingAnimalsBrainCentral Nervous System DiseasesCognitionHumansbrain-related diseasescognitionintermittent fastingprevention and progress

Identifiers

PMID34579042
PMCPMC8470960
OpenAlexW3201251334

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.