Prebiotic fibre did not clearly change bone-related blood markers in type 2 diabetes
Inulin-type fructans showed no statistically significant differences from a control supplement in the measured blood markers. That does not establish equivalent effects or unchanged bone strength.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
For people with type 2 diabetes, inulin-type fructans produced no statistically significant differences from maltodextrin in blood calcium, magnesium, vitamin D, or bone turnover markers. Exploratory correlations involving gut microbes raised further research questions. They do not overturn the treatment finding or establish that the supplement changes bone strength or fracture risk.
The trial included a small group and short treatment periods. The reported outcomes were blood measurements. Statistically nonsignificant differences leave uncertainty and do not demonstrate equivalence between supplements.
What researchers found
Minerals, vitamin D, and bone turnover markers
Blood concentrations with inulin-type fructans versus maltodextrin over 6 weeks in participants with type 2 diabetes.
Blood tests, limited conclusions
The study assessed minerals, vitamin D, and markers of bone turnover. These measurements address the trial's blood-test question, but do not directly establish changes in bone strength or fractures.
Correlations need separate interpretation
The researchers examined links between changes in gut microbes and host measurements after the main analysis. Such correlations cannot establish that microbes caused changes or that the supplement improved bone health.
The original publication
Can supplements with prebiotic fibres positively influence bone health in type 2 diabetes? Insights from a randomised controlled crossover trial.
Birkeland E, Bamigbetan WA, Molven KD et al.
Arch Osteoporos · 2025
- PubMed ID
- 40471453
- Record checked
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