Fiber showdown: which type slows digestion the most?

NCT ID NCT03982836

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study tested how two types of soluble fiber—fructooligosaccharide and partially hydrolyzed guar gum—affect how fast food leaves the stomach and moves through the intestines. Twenty-five healthy adults each tried both fibers and a placebo on separate days. The goal was to see if these fibers slow digestion differently, which could help guide their use in managing appetite or gut health.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Soluble dietary fibers (fructooligosaccharide and partially hydrolyzed guar gum)

What this could lead to

If successful, this could help guide dietary recommendations for using specific fibers to manage digestion.

What could go wrong

This is a small, early-stage study in healthy volunteers, not patients. Results may not apply to people with digestive conditions.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

gastroparesis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Escola de Enfermagem - UFMG

    Belo Horizonte, Minas Gerais, 30130-100, Brazil