Evidence map›Paper›PMID 40603778›Full record

ReviewNature reviews. Gastroenterology & hepatology2025

Intestinal pH: a major driver of human gut microbiota composition and metabolism.

Julius E Brinck, Anurag K Sinha, Martin F Laursen, Lars O Dragsted, Jeroen Raes, Ruben Vazquez Uribe, Jens Walter, Henrik M Roager, Tine R Licht

Abstract readReview
PubMed Publisher
In one paragraph

Review in Nature reviews. Gastroenterology & hepatology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 1 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.

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

51 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  8. Bacteriophage Sf14 survival under simulated gastrointestinal conditions.bioRxiv : the preprint server for biology · 2026
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  19. Acidification-dependent suppression ofInfection and immunity · 2026
    Article
  20. Formulation-dependent kinetics ofMicrobiology spectrum · 2026
    Article
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

9 authors.

Julius E BrinckNational Food Institute, Technical University of Denmark, Kgs Lyngby, Denmark.ORCID http://orcid.org/0000-0001-9057-1621
Anurag K SinhaNational Food Institute, Technical University of Denmark, Kgs Lyngby, Denmark. akusi@food.dtu.dk.ORCID http://orcid.org/0000-0002-6051-4930
Martin F LaursenNational Food Institute, Technical University of Denmark, Kgs Lyngby, Denmark.
Lars O DragstedDepartment of Nutrition, Exercise and Sports, University of Copenhagen, Frederiksberg, Denmark.ORCID http://orcid.org/0000-0003-0609-6317
Jeroen RaesDepartment of Microbiology and Immunology, KU Leuven - University of Leuven, Leuven, Belgium.ORCID http://orcid.org/0000-0002-1337-041X
Ruben Vazquez UribeDepartment of Microbiology and Immunology, KU Leuven - University of Leuven, Leuven, Belgium.
Jens WalterAPC Microbiome Ireland, University College Cork, Cork, Ireland.ORCID http://orcid.org/0000-0003-1754-172X
Henrik M RoagerNovo Nordisk Foundation Microbiome Health Initiative, Technical University of Denmark, Kgs Lyngby, Denmark.ORCID http://orcid.org/0000-0002-2504-8313
Tine R LichtNational Food Institute, Technical University of Denmark, Kgs Lyngby, Denmark. trli@food.dtu.dk.ORCID http://orcid.org/0000-0002-6399-9574

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the human gastrointestinal tract, pH is a key factor in shaping gut microbial composition and activity, while also being influenced by microbial metabolism. pH varies substantially along the gastrointestinal tract within an individual and between different individuals due to a combination of host, diet, microbial and external factors. The importance of pH on microbiota composition and metabolic response has been widely explored over the past century. Here, we review the literature to explore the major physiological and dietary factors that influence pH along the gastrointestinal tract. From a microbial ecology perspective, we discuss how gastrointestinal pH affects microbiota composition and metabolism. We explore mechanisms by which pH can influence bacterial acid response systems, gene expression and the production of microbial metabolites important for health. Finally, we review the literature regarding the potential role of gastrointestinal pH in human diseases. We propose that we can advance our understanding of the gut microbiota in health and disease by considering gastrointestinal pH. We argue that pH-mediated gut microbial metabolic variation is highly important for predicting and manipulating metabolic output relevant to human health.

Indexed as

Gastrointestinal MicrobiomeGastrointestinal TractDietHumansHydrogen-Ion Concentration

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.