IBD Evidence

Evidence map

Inflammatory bowel disease trigger foods: what the evidence base looks like

12 publications, 6 of them trials and 4 syntheses. This page describes the shape of that literature rather than summarising its conclusions.

Updated 4 min read 12 citations

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What the evidence on inflammatory bowel disease trigger foods is made of Of 12 publications on this topic, the breakdown by study type: 4 meta-analysis, 6 randomised trial, 2 review. 462meta-analysis (4)randomised trial (6)review (2)
12 publications, by study type. Volume is not strength — the same count can be a settled question or a pile of commentary, and which one it is depends almost entirely on this breakdown. Harvested from PubMed and Crossref; publication type as recorded by the source.

What this literature is made of

This is a well-developed evidence base: multiple syntheses sitting on a substantial body of trials. Questions here are usually about applicability rather than about whether an effect exists.

The distinction that matters most is between synthesis and primary research. A meta-analysis pools trials and is the closest thing to a settled answer a field produces. A narrative review is one group's reading of the same material and can be selective without being dishonest. Counting them together, which most citation counts do, obscures exactly the thing you want to know.

When the inflammatory bowel disease trigger foods literature was published Publication years for the 12 papers on this topic, grouped into bands from before 2015 through to 2023 onwards. 2023 onwards7 papers2020-20222 papers2015-20192 papersBefore 20151 papers
Still active. The most recent paper here is from 2025, so this is a field where an answer written today may not hold for long. Publication years as recorded by PubMed and Crossref.

How this page is built

Everything above is computed from the citations this site harvested from PubMed and Crossref, not written by hand. When the weekly harvest finds a new paper on this topic, these counts change and the characterisation changes with them. That is the point: a hand-written claim about how strong an evidence base is starts decaying the day it is written.

Publication type is taken as the source records it. That is imperfect — journals label inconsistently, and a paper indexed as a "review" may be a systematic one — so treat the bands as approximate. They are accurate enough to distinguish a trial literature from a commentary literature, which is the distinction that matters.

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The strongest work on this topic

Ordered by study design first, then recency. The full set is listed in the references below.

  1. Using Diet to Treat Inflammatory Bowel Disease: A Systematic Review — Gleave A, Shah A, Tahir U et al., 2025, systematic review
  2. AGA Clinical Practice Update on Diet and Nutritional Therapies in Patients With Inflammatory Bowel Disease: Expert Review — Hashash JG, Elkins J, Lewis JD et al., 2024, clinical guideline
  3. Efficacy of different dietary therapy strategies in active pediatric Crohn's disease: a systematic review and network meta-analysis — Ma J, Chong J, Qiu Z et al., 2024, meta-analysis
  4. Dietary Interventions in Ulcerative Colitis: A Systematic Review of the Evidence with Meta-Analysis — Herrador-López M, Martín-Masot R, Navas-López VM, 2023, meta-analysis
  5. The use of the Crohn's disease exclusion diet (CDED) in adults with Crohn's disease: A randomized controlled trial — Pasta A, Formisano E, Calabrese F et al., 2025, randomised controlled trial
  6. The Crohn's disease exclusion diet for induction and maintenance of remission in adults with mild-to-moderate Crohn's disease (CDED-AD): an open-label, pilot, randomised trial00299-5) — Yanai H, Levine A, Hirsch A et al., 2022, randomised controlled trial
  7. Metabolome Changes With Diet-Induced Remission in Pediatric Crohn's Disease — Ghiboub M, Penny S, Verburgt CM et al., 2022, randomised controlled trial
  8. Crohn's Disease Exclusion Diet Plus Partial Enteral Nutrition Induces Sustained Remission in a Randomized Controlled Trial — Levine A, Wine E, Assa A et al., 2019, randomised controlled trial
  9. Treatment of Crohn's Disease with an IgG4-Guided Exclusion Diet: A Randomized Controlled Trial — Gunasekeera V, Mendall MA, Chan D et al., 2016, randomised controlled trial
  10. Nutrition support in inflammatory bowel disease30110-9) — Lewis JD, Fisher RL, 1994, randomised controlled trial
How much research is there on inflammatory bowel disease trigger foods?
12 publications are indexed here, of which 6 are trials and 4 are syntheses.
Does more research mean a stronger conclusion?
No. Composition matters more than volume — five randomised trials support a claim far better than fifty commentaries, and citation counts do not distinguish between them.
How current is this?
The most recent paper indexed here is from 2025. The set is refreshed weekly from PubMed and Crossref.
Why does this page not tell me the answer?
Because summarising a literature into a conclusion requires reading it, and doing that automatically is how confident nonsense gets published. This page tells you how much weight a conclusion could bear; the articles on this site do the interpreting.

References

Every citation below links to the original peer-reviewed record on PubMed or via DOI. Nothing here is a substitute for medical advice.

  1. Using Diet to Treat Inflammatory Bowel Disease: A Systematic Review Gleave A, Shah A, Tahir U, et al. · The American journal of gastroenterology · 2025 · Systematic review DOIPubMed 39056556
  2. AGA Clinical Practice Update on Diet and Nutritional Therapies in Patients With Inflammatory Bowel Disease: Expert Review Hashash JG, Elkins J, Lewis JD, et al. · Gastroenterology · 2024 · Clinical guideline DOIPubMed 38276922
  3. Efficacy of different dietary therapy strategies in active pediatric Crohn's disease: a systematic review and network meta-analysis Ma J, Chong J, Qiu Z, et al. · PeerJ · 2024 · Meta-analysis DOIPubMed 39686992Full text
  4. Dietary Interventions in Ulcerative Colitis: A Systematic Review of the Evidence with Meta-Analysis Herrador-López M, Martín-Masot R, Navas-López VM · Nutrients · 2023 · Meta-analysis DOIPubMed 37836478Full text
  5. The use of the Crohn's disease exclusion diet (CDED) in adults with Crohn's disease: A randomized controlled trial Pasta A, Formisano E, Calabrese F, et al. · European journal of clinical investigation · 2025 · Randomised controlled trial DOIPubMed 39853756
  6. The Crohn's disease exclusion diet for induction and maintenance of remission in adults with mild-to-moderate Crohn's disease (CDED-AD): an open-label, pilot, randomised trial Yanai H, Levine A, Hirsch A, et al. · The lancet. Gastroenterology & hepatology · 2022 · Randomised controlled trial DOIPubMed 34739863
  7. Metabolome Changes With Diet-Induced Remission in Pediatric Crohn's Disease Ghiboub M, Penny S, Verburgt CM, et al. · Gastroenterology · 2022 · Randomised controlled trial DOIPubMed 35679949
  8. Crohn's Disease Exclusion Diet Plus Partial Enteral Nutrition Induces Sustained Remission in a Randomized Controlled Trial Levine A, Wine E, Assa A, et al. · Gastroenterology · 2019 · Randomised controlled trial DOIPubMed 31170412
  9. Treatment of Crohn's Disease with an IgG4-Guided Exclusion Diet: A Randomized Controlled Trial Gunasekeera V, Mendall MA, Chan D, et al. · Digestive diseases and sciences · 2016 · Randomised controlled trial DOIPubMed 26809868
  10. Nutrition support in inflammatory bowel disease Lewis JD, Fisher RL · The Medical clinics of North America · 1994 · Randomised controlled trial DOIPubMed 7967919
  11. Dietary therapies for adult and pediatric inflammatory bowel disease Deas J, Shah ND, Konijeti GG, et al. · Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2024 · Review DOIPubMed 38505875
  12. Considerations in Paediatric and Adolescent Inflammatory Bowel Disease Vuijk SA, Camman AE, de Ridder L · Journal of Crohn's & colitis · 2024 · Review DOIPubMed 39475081Full text