Evidence map›Paper›PMID 40471453›Full record

Trial reportArchives of osteoporosis2025

Can supplements with prebiotic fibres positively influence bone health in type 2 diabetes? Insights from a randomised controlled crossover trial.

Eline Birkeland, Wuraola Aduke Bamigbetan, Kristine Duus Molven, Per M Thorsby, Hanne L Gulseth, Anne-Marie Aas, Cecilie Dahl

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Archives of osteoporosis, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02569684 (Effects of Prebiotics on GLP-1 in Type 2 Diabetes), which is not on this map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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.

NCT02569684 nacompletednot on this map

Effects of Prebiotics on GLP-1 in Type 2 Diabetes

TypeinterventionalSponsorOslo University HospitalRan2015 to 2019Enrolled37ConditionsDiabetes Type 2ArmsPrebiotic fibers: oligofructose and inulin, Maltodextrin
3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Impact of microbiome alterations on fracture healing and nonunion: a narrative review.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026
    Review
  2. Review
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

7 authors.

Eline BirkelandSection of Nutrition and Dietetics, Division of Medicine, Department of Clinical Service, Oslo University Hospital, 0424, Oslo, Norway.
Wuraola Aduke BamigbetanSection for Clinical Data Management, Research Support for Clinical Trials, Oslo University Hospital, Oslo, Norway.
Kristine Duus MolvenDepartment of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
Per M ThorsbyHormone Laboratory, Department of Medical Biochemistry and Biochemical Endocrinology and Metabolism Research Group, Oslo University Hospital, Aker, Oslo, Norway.
Hanne L GulsethDivision of Mental and Physical Health, Norwegian Institute of Public Health, 0213, Oslo, Norway.
Anne-Marie AasSection of Nutrition and Dietetics, Division of Medicine, Department of Clinical Service, Oslo University Hospital, 0424, Oslo, Norway.
Cecilie DahlInstitute of Health and Society, University of Oslo, 0318, Oslo, Norway. cecilie.dahl@medisin.uio.no.

Funding

Neuronal ensembles of drug context-induced impulsive decision makingR21DA036660 · NIDA · WASHINGTON STATE UNIVERSITY · PI FUCHS LOKENSGARD, RITA A, XIE, XIAOHU · 2014 to 2015
$425k
Diabetesforbundet 36660Mills DA 36660NIDA NIH HHS R21 DA036660The DAM Foundation 2013-2-267
6 · The paper itself

Abstract

Inulin-type fructans did not significantly improve serum levels of calcium, magnesium, vitamin D, or bone turnover markers in people with type 2 diabetes (T2D). However, interactions between gut microbiota and bone health were suggested, indicating the need for further research in this population.

backgroundEvidence suggests that a healthy gut microbiome benefits bone health, especially in immunocompromised populations like the elderly and people with T2D.

objectiveWe investigated the effect of prebiotics (inulin-type fructans) on serum concentrations of calcium, magnesium, 25(OH) vitamin D, and the bone turnover markers N-terminal propeptide of type 1 collagen (P1NP), and C-terminal telopeptide of type 1 collagen (CTX-1) in people with T2D.

designParticipants (29) were treated for 6 weeks with 16 g inulin-type fructans and 16 g control supplement (maltodextrin) in randomised and double-blind crossover design, with a 4-week washout between treatments.

resultsCompared to the control, inulin-type fructans did not significantly affect serum concentrations (mean ± SEM) of calcium (0.05 ± 0.02 mmol/L vs. 0.02 ± 0.03 mmol/L, p = 0.324), magnesium (0.02 ± 0.01 mmol/L vs. 0.00 ± 0.01 mmol/L, p = 0.352), 25(OH) vitamin D (-3.60 ± 1.94 nmol/L vs. -2.00 ± 1.97 nmol/L, P = 0.564), P1NP (0.81 ± 0.95 ug/L vs. -0.89 ± 0.97 ug/L, p = 0.210), or CTX-1 (-0.01 ± 0.01 ug/L vs. 0.00 ± 0.01 ug/L, p = 0.438). However, post hoc analyses of correlations between changes support that cross-talk between the human host and gut microbiota may influence bone health in this population.

conclusionThis study does not support that inulin-type fructans may improve serum levels of calcium, magnesium, or 25(OH) vitamin D, nor that they affect bone turnover markers in people with T2D over 6 weeks. Interactions between microbiota and bone health in this population warrants further investigations. The trial is registered at clinicaltrials.gov (NCT02569684).

Indexed as

Diabetes Mellitus, Type 2Dietary SupplementsPrebioticsAgedBiomarkersBone RemodelingCalciumCollagen Type ICross-Over StudiesDouble-Blind MethodFemaleFructansGastrointestinal MicrobiomeHumansInulinMagnesiumBiomarkersCalciumCollagen Type IFructansInulinMagnesiumPeptide FragmentsPeptidesPrebioticsProcollagenVitamin DBone turnover markersCalciumMagnesiumNutrient uptakePrebioticsType 2 diabetesVitamin D

Identifiers

PMID40471453
PMCPMC12141403

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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.