Evidence map›Paper›PMID 42711561›Full record

SynthesisPediatric research2026

Effects of dietary interventions on gut microbiota and related cardiometabolic changes in pediatric obesity: a systematic review and meta-analysis.

Giulia Fiore, Mireia Alcázar, Judit Muñoz-Hernando, Irene Hernández-Pérez, Emma Perucho, Simona Panelli, Natalia Ferré, Joaquín Escribano, Elvira Verduci, Veronica Luque

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Pediatric research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Giulia FioreDepartment of Health Sciences, University of Milan, Milan, Italy.ORCID http://orcid.org/0000-0002-6100-5687
Mireia AlcázarUniversitat Rovira i Virgili, Pediatric, Nutrition and Development Research Unit (PediNuR), Reus, Spain.ORCID http://orcid.org/0000-0001-9813-4645
Judit Muñoz-HernandoUniversitat Rovira i Virgili, Pediatric, Nutrition and Development Research Unit (PediNuR), Reus, Spain.ORCID http://orcid.org/0000-0003-2622-7011
Irene Hernández-PérezUniversitat Rovira i Virgili, Pediatric, Nutrition and Development Research Unit (PediNuR), Reus, Spain.ORCID http://orcid.org/0009-0002-2440-036X
Emma PeruchoInstitut de Recerca Biomèdica Catalunya Sud, Reus, Spain.ORCID http://orcid.org/0009-0002-8982-6767
Simona PanelliPediatric Clinical Research Center "Romeo ed Enrica Invernizzi", Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy.ORCID http://orcid.org/0000-0001-6083-8786
Natalia FerréUniversitat Rovira i Virgili, Pediatric, Nutrition and Development Research Unit (PediNuR), Reus, Spain.ORCID http://orcid.org/0000-0002-2838-1525
Joaquín EscribanoUniversitat Rovira i Virgili, Pediatric, Nutrition and Development Research Unit (PediNuR), Reus, Spain.ORCID http://orcid.org/0000-0002-5041-459X
Elvira VerduciDepartment of Health Sciences, University of Milan, Milan, Italy. elvira.verduci@unimi.it.ORCID http://orcid.org/0000-0003-2111-3111
Veronica LuqueDepartment of Health Sciences, University of Milan, Milan, Italy. veronica.luque@urv.cat.ORCID http://orcid.org/0000-0003-2615-8175

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGut microbiota imbalances may contribute to obesity, yet whether dietary interventions can modulate the microbiota and improve metabolic health in pediatrics has not been thoroughly reviewed. This systematic review and meta-analysis explores the impact of dietary interventions on the gut microbiota of children and adolescents with overweight or obesity, and its association with cardiometabolic improvements.

methodsA systematic search of clinical trials in Pubmed, Cochrane and EMBASE was conducted following PRISMA guidelines (PROSPERO n°CRD42024505494). Risk of bias was assessed with RoB2 and ROBINS, for randomized and non-randomized intervention studies.

resultsOverall, 60 articles were assessed for full-text eligibility, 8 were included, and 4 provided alpha-diversity data for meta-analysis. A total of 200 participants were included (6-16 years). Six studies implemented calorie-restricted diets, one a low free-sugar diet, and one CHILD-1 diet. The meta-analysis revealed a significant increase in Chao1 (48.76 [95%CI 1.81; 95.70]; I

conclusionsBalanced dietary interventions with calorie-restriction adequate for pediatric age could increase gut microbiota richness and butyrate-producing bacteria abundance. Future trials should clarify diet-driven gut microbiota changes in childhood obesity and related metabolic changes. IMPACT: Balanced calorie restriction diet may increase gut microbiota richness in childhood obesity Butyrate-producer expansion needs long-term dietary intervention Gaps in linking microbiota-metabolism interplay in pediatric obesity.

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.