Evidence mapPaperPMID 41920710Full record

ArticleDiabetes care2026

Intake of Fiber From Different Food Sources and Type 2 Diabetes Risk: An Integrated Analysis of Epidemiological and Multiomic Data.

Yi Wan, Hala B Alessa, Marta Guasch-Ferré, Deirdre K Tobias, Kyu Ha Lee, JoAnn E Manson, Walter C Willett, Qi Sun, Frank B Hu

Abstract read
In one paragraph

Article in Diabetes care, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

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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

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Yi WanDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA.
Hala B AlessaDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA.
Marta Guasch-FerréDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA.ORCID 0000-0001-8525-1404
Deirdre K TobiasDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA.ORCID 0000-0003-0020-9552
Kyu Ha LeeDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA.
JoAnn E MansonDivision of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA.
Walter C WillettDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA.
Qi SunDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA.ORCID 0000-0002-8480-1563
Frank B HuDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA.ORCID 0000-0002-8233-6274

Funding

NIH HHSNovo Nordisk Foundation
6 · The paper itself

Abstract

objectiveTo examine the association between fiber from various food sources and type 2 diabetes (T2D) risk, as well as the molecular profiles involved. RESEARCH DESIGN AND

methodsUsing data from three large prospective U.S. cohorts comprising 195,222 participants observed for up to 34 years, we evaluated the association between fiber from various food sources and T2D risk. We also assessed the association between fiber intake, plasma metabolic biomarkers, and a metabolomic profile indicative of T2D risk. Additionally, we examined gut microbial features related to fiber intake and the T2D metabolomic profile.

resultsDuring follow-up, we documented 18,369 incident T2D cases. Higher intakes of total fiber (hazard ratio [HR] comparing extreme quintiles 0.88; 95% CI 0.82, 0.94), cereal fiber (HR 0.77; 95% CI 0.73, 0.82), and fruit fiber (HR 0.82; 95% CI 0.78, 0.87) were each associated with a lower T2D risk. Greater intakes of total fiber, cereal fiber, and fruit fiber, but not vegetable fiber, were linked to more favorable plasma profiles of insulinemic, lipid, and inflammatory biomarkers and a metabolomic profile indicative of a lower T2D risk. We also identified multiple gut microbial species, such as Faecalibacterium prausnitzii, Ruminococcus lactaris, and Gemmiger formicilis, along with relevant butyric acid-producing enzymes, all of which were associated with higher fruit fiber intake and a metabolomic profile indicating a lower likelihood of T2D development.

conclusionsHigher intakes of total, cereal, and fruit fiber are associated with a lower risk of T2D and a more favorable metabolic profile, with the gut microbiome potentially contributing to the beneficial association of fruit fiber.

Indexed as

Diabetes Mellitus, Type 2Dietary FiberFemaleFruitHumansMaleMiddle AgedMultiomicsProspective StudiesDietary Fiber

Identifiers

PMID41920710
PMCPMC13191390

What Socratic holds

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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 Socratic graph.