Evidence map›Paper›PMID 36510309›Full record

ArticleMicrobiome2022

Stool energy density is positively correlated to intestinal transit time and related to microbial enterotypes.

Jos Boekhorst, Naomi Venlet, Nicola Procházková, Mathias L Hansen, Christian B Lieberoth, Martin I Bahl, Lotte Lauritzen, Oluf Pedersen, Tine Rask Licht, Michiel Kleerebezem and 1 more

Open access · goldAbstract readVideo-Audio Media
In one paragraph

Article in Microbiome, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
6.6field-weighted citation impact, top 2% of its field
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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
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  4. Bridging the gap:Gut microbes · 2026
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  12. Unlocking the gut: microbiome's role in energy metabolism.American journal of physiology. Regulatory, integrative and comparative physiology · 2025
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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

11 authors at 3 institutions in 2 countries.

Jos BoekhorstHost-Microbe Interactomics, Wageningen University and Research, Wageningen, The Netherlands.
Naomi VenletHost-Microbe Interactomics, Wageningen University and Research, Wageningen, The Netherlands.
Nicola ProcházkováDepartment of Nutrition, Exercise and Sports, University of Copenhagen, Frederiksberg, Denmark.
Mathias L HansenDepartment of Nutrition, Exercise and Sports, University of Copenhagen, Frederiksberg, Denmark.
Christian B LieberothDepartment of Nutrition, Exercise and Sports, University of Copenhagen, Frederiksberg, Denmark.
Martin I BahlNational Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark.
Lotte LauritzenDepartment of Nutrition, Exercise and Sports, University of Copenhagen, Frederiksberg, Denmark.
Oluf PedersenThe Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark.
Tine Rask LichtNational Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark.
Michiel KleerebezemHost-Microbe Interactomics, Wageningen University and Research, Wageningen, The Netherlands.
Henrik M RoagerDepartment of Nutrition, Exercise and Sports, University of Copenhagen, Frederiksberg, Denmark. hero@nexs.ku.dk.
University of Copenhagen · DKWageningen University & Research · NLTechnical University of Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt has been hypothesised that the gut microbiota causally affects obesity via its capacity to extract energy from the diet. Yet, evidence elucidating the role of particular human microbial community structures and determinants of microbiota-dependent energy harvest is lacking.

resultsHere, we investigated whether energy extraction from the diet in 85 overweight adults, estimated by dry stool energy density, was associated with intestinal transit time and variations in microbial community diversity and overall structure stratified as enterotypes. We hypothesised that a slower intestinal transit would allow for more energy extraction. However, opposite of what we expected, the stool energy density was positively associated with intestinal transit time. Stratifications into enterotypes showed that individuals with a Bacteroides enterotype (B-type) had significantly lower stool energy density, shorter intestinal transit times, and lower alpha-diversity compared to individuals with a Ruminococcaceae enterotype (R-type). The Prevotella (P-type) individuals appeared in between the B- and R-type. The differences in stool energy density between enterotypes were not explained by differences in habitual diet, intake of dietary fibre or faecal bacterial cell counts. However, the R-type individuals showed higher urinary and faecal levels of microbial-derived proteolytic metabolites compared to the B-type, suggesting increased colonic proteolysis in the R-type individuals. This could imply a less effective colonic energy extraction in the R-type individuals compared to the B-type individuals. Notably, the R-type had significantly lower body weight compared to the B-type.

conclusionsOur findings suggest that gut microbial energy harvest is diversified among individuals by intestinal transit time and associated gut microbiome ecosystem variations. A better understanding of these associations could support the development of personalised nutrition and improved weight-loss strategies. Video Abstract.

Indexed as

Gastrointestinal MicrobiomeMicrobiotaAdultBacteroidesFecesHumansPrevotellaEnergy harvestIntestinal transit timeMicrobial ecologyPersonalised nutrition

Identifiers

PMID36510309
PMCPMC9743556
OpenAlexW4311825442

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.