Evidence map›Paper›PMID 33855040›Full record

ArticleFrontiers in nutrition2021

One Month of Classic Therapeutic Ketogenic Diet Decreases Short Chain Fatty Acids Production in Epileptic Patients.

Cinzia Ferraris, Erika Meroni, Maria Cristina Casiraghi, Anna Tagliabue, Valentina De Giorgis, Daniela Erba

Registry-linked trialAbstract read
In one paragraph

Article in Frontiers in nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05469997 (Ketogenic Diet Interventions in Parkinson's Disease), which is not on this map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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.

NCT05469997 nacompletednot on this mapstarted 2023, after this paper: background citation

Ketogenic Diet Interventions in Parkinson's Disease: Safeguarding the Gut Microbiome

TypeinterventionalSponsorUniversity of British ColumbiaRan2023 to 2024Enrolled52ConditionsParkinson DiseaseArmsMediterranean-Ketogenic Diet, Mediterranean diet supplemented with medium-chain triglyceride oil
3 · Its place in the literature

Who cites it

29 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  5. Observational
  6. Short-chain fatty acids.Nature metabolism · 2026
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  12. The Interplay between the Gut and Ketogenic Diets in Health and Disease.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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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

6 authors.

Cinzia FerrarisHuman Nutrition and Eating Disorder Research Center, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.
Erika MeroniDepartment of Food, Environmental and Nutritional Sciences DeFENS, University of Milan, Milan, Italy.
Maria Cristina CasiraghiDepartment of Food, Environmental and Nutritional Sciences DeFENS, University of Milan, Milan, Italy.
Anna TagliabueHuman Nutrition and Eating Disorder Research Center, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.
Valentina De GiorgisDepartment of Child Neurology and Psychiatry, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Mondino Foundation, Pavia, Italy.
Daniela ErbaDepartment of Food, Environmental and Nutritional Sciences DeFENS, University of Milan, Milan, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ketogenic diet (KD), a high fat and very low carbohydrates diet, is used worldwide for the treatment of drug resistant epilepsy but, due to its composition, it might exert an impact on gut health. Even though data of KD effects on intestinal microbiota changes are recently emerging, its influence on the gut environment has been scarcely addressed so far. The aim of this study was to investigate whether 1 month of KD affects the gut environment in epileptic patients, by analyzing short chain fatty acids (SCFA) production and fecal water toxicity. A total of seven patients were enrolled. Stool samples were collected before (T0) and after 1 month of KD (4:1 ketogenic ratio) (T1). SCFA were determined by GC-FID and fecal water toxicity in Caco-2 cell culture by comet assay. Concentrations of SCFA significantly decreased after KD (

Indexed as

epilepsyfecal water toxicitygut environmentketogenic dietshort chain fatty acids

Identifiers

PMID33855040
PMCPMC8039123

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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.