Evidence map›Paper›PMID 40358997›Full record

ArticleJMIR research protocols2025

Associations Among Diet, Health, Lifestyle, and Gut Microbiota Composition in the General French Population: Protocol for the Le French Gut - Le Microbiote Français Study.

Chloe Connan, Sébastien Fromentin, Mourad Benallaoua, Anne-Sophie Alvarez, Nicolas Pons, Benoît Quinquis, Christian Morabito, Julie-Anne Nazare, Elise Borezée-Durant, Le French Gut Consortium and 9 more

Erratum issued Registry-linked trialAbstract read
In one paragraph

Article in JMIR research protocols, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT05758961 (Le French Gut), which is not on this map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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.

NCT05758961 recruitingnot on this map

Le French Gut : the French Microbiota

TypeobservationalSponsorInstitut National de Recherche pour l'Agriculture, l'Alimentation et l'EnvironnementRan2022 to 2042Enrolled100,000ConditionsGeneral Population
3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Trial
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

19 authors.

Chloe Connan *Université Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0009-0008-8410-5358
Sébastien Fromentin *Université Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0009-0008-2122-8449
Mourad BenallaouaDepartment of Gastroenterology, Avicenne Hospital, Assistance Publique-Hôpitaux de Paris, Université de Paris, Bobigny, France.ORCID 0000-0002-5419-1135
Anne-Sophie AlvarezUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0009-0007-0728-1705
Nicolas PonsUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0000-0003-1926-8077
Benoît QuinquisUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0000-0002-7573-969X
Christian MorabitoUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0000-0002-3193-7299
Julie-Anne NazareUniv-Lyon, CarMeN Laboratory, Inserm, Inrae, Université Claude Bernard Lyon-1, Lyon, France.ORCID 0000-0003-3545-3264
Elise Borezée-DurantUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0000-0002-6047-1651
Le French Gut Consortiumsee Authors' Contributions, Gif-sur-Yvette, France.
Florence HaimetUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0009-0003-7033-5623
Stanislav Dusko EhrlichUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0000-0002-7563-4046
Karine ValeilleUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0009-0000-0345-2879
Alexandre CavezzaUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0009-0003-0524-6747
Hervé BlottièreUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0000-0002-8390-0607
Patrick VeigaUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0000-0001-6318-8547
Mathieu AlmeidaUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0000-0003-4971-0049
Joël DoréUniversité Paris-Saclay, INRAE, MetaGenoPolis (MGP), Jouy-en-Josas, France.ORCID 0000-0002-8756-0718
Robert BenamouzigDepartment of Gastroenterology, Avicenne Hospital, Assistance Publique-Hôpitaux de Paris, Université de Paris, Bobigny, France.ORCID 0000-0003-1952-6830

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOver the past 2 decades, the gut microbiota has emerged as a key player in human health, being involved in many different clinical contexts. Yet, many aspects of the relationship with its host are poorly documented. One obstacle is the substantial variability in wet-laboratory procedures and data processing implemented during gut microbiota studies, which poses a challenge of comparability and potential meta-analysis.

objectiveThe study protocol described here aimed to better understand the relationship between health, dietary habits, and the observed heterogeneity of gut microbiota composition in the general population. "Le French Gut - Le microbiote français" aimed to collect, sequence, and analyze 100,000 fecal samples from French residents using a high-quality shotgun metagenomic pipeline, complemented with comprehensive health, lifestyle, and dietary metadata.

methods"Le French Gut - Le microbiote français" is a prospective, noninterventional French national study involving individuals, the creation of a biological collection (feces), and the exploitation of data from questionnaires and the National Health Data System (Système National des Données de Santé). This national study is open to all metropolitan French adult residents, excluding those who have undergone a colectomy or digestive stoma, or who have had a colonoscopy or taken antibiotics in the last 3 months. This is a home-based trial in which volunteers complete a questionnaire with insights about their health and habits, and in which stool samples are self-collected. Data analysis is structured into 6 work packages, each focusing on a specific aspect of the gut microbiome, including its composition and associations with lifestyle, quality of life, and health.

resultsThis paper outlines the study protocol, with recruitment having started in September 2022 and expected to continue until the end of December 2025. As of January 2025, a total of 20,000 participants have been enrolled. The first scientific publications based on the data analysis are expected by mid-2025.

conclusions"Le French Gut" aims to provide a reference database and new ecosystem tools for understanding the relationship between the gut microbiota, its host, and diet. We expect to be able to find new signatures or targets and promote the design of innovative preventive strategies, personalized nutrition, and precision medicine.

trial registrationClinicalTrials.gov NCT05758961; https://clinicaltrials.gov/study/NCT05758961. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/64894.

Indexed as

DietGastrointestinal MicrobiomeHealth StatusLife StyleAdultFecesFemaleFranceHumansMaleMetagenomicsProspective Studieschronic diseasesclinical datadietary habitecosystemecosystem toolsfecalfecal samplesFrenchFrench citizengutgut floragut microbiomeGut microbiotahealthinnovationmicrobiomemicroorganismsnutritionalrelationshipsymbiosis

Identifiers

PMID40358997
PMCPMC12117270

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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.