Evidence map›Paper›PMID 21327021›Full record

Trial reportGut microbes

Effects of a gluten-free diet on gut microbiota and immune function in healthy adult humans.

Yolanda Sanz

Registry-linked trialAbstract readClinical Trial
In one paragraph

Trial report in Gut microbes. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06249074 (The Impact of Gluten-free Diet on the Thyroid Function, Quality of Life and Gut Microbiome Composition in Women With Autoimmune Thyroiditis), which is not on this map. Cited by 64 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing 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.

NCT06249074 nacompletednot on this map

The Impact of Gluten-free Diet on the Thyroid Function, Quality of Life and Gut Microbiome Composition in Women With Autoimmune Thyroiditis

TypeinterventionalSponsorMedical University of GdanskRan2020 to 2021Enrolled31ConditionsAutoimmune ThyroiditisArmsGluten-free diet, Gluten capsules supplementation, Placebo capsules supplementation
3 · Its place in the literature

Who cites it

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

  1. The role of probiotics in the immune response and intestinal microbiota of children with celiac disease: a systematic review.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo · 2021
    Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Review
  6. Review
  7. Article
  8. Gluten's silent strike: Unmasking its impact on liver health.World journal of gastrointestinal pathophysiology · 2025
    Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Celiac Disease: Beyond Diet and Food Awareness.Foods (Basel, Switzerland) · 2025
    Review
  15. Dietary Effects on the Gut Phageome.International journal of molecular sciences · 2024
    Review
  16. Review
  17. Review
  18. Article
  19. Review
  20. Review

4 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

1 author.

Yolanda SanzMicrobial Ecophysiology and Nutrition Group, Institute of Agrochemistry and Food Technology, Spanish National Research Council (CSIC), Valencia, Spain. yolsanz@iata.csic.es

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Diet is a major environmental factor influencing gut microbiota diversity and functionality, which might be relevant to subjects following dietary therapies. Celiac disease (CD) is an enteropathy caused by an aberrant immune response to cereal gluten proteins and the only therapy is the adherence to a gluten-free diet (GFD). In this context, a preliminary study was conducted to establish whether the GFD in itself could modify the composition and immune properties of the gut microbiota. The trial included 10 healthy subjects (30.3 years-old), which were submitted to a GFD over one month. Analysis of fecal microbiota and dietary intake indicated that numbers of healthy gut bacteria decreased, while numbers of unhealthy bacteria increased parallel to reductions in the intake of polysaccharides after following the GFD. Fecal samples of subjects under a GFD, which represent an altered microbiota, also exerted lower immune stimulatory effects on peripheral blood mononuclear cells than those of subjects on a regular gluten-containing diet. This addendum presents further discussion on the rationale behind these findings, limitations of the study and possible consequences of dietary counselling in the care process of celiac disease patients.

Indexed as

AdultBacteriaBacterial AdhesionCeliac DiseaseCytokinesDiet, Gluten-FreeFecesFemaleHealth StatusHumansIntestinesMaleCytokinesceliac diseasegluten-free dietgut microbiotaimmunitypolysaccharidesprebioticsprobiotics

Identifiers

PMID21327021
PMCPMC3023594

What OpenQuestion holds

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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.