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Fiber showdown: which type slows digestion the most?

NCT ID NCT03982836

Knowledge-focused Sponsor: Federal University of Minas Gerais Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

25 people

The number who actually took part.

Started

Jul 2018

Finished

Sep 2019

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 40 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Healthy volunteers; * Both sexes; * Age Range:From 18 to 40 years old * Volunteers who do not have gluten or egg restriction * No history or diagnosis of gastrointestinal diseases; * Had not undergone recent operations that compromised intestinal transit time and / or gastric emptying. Exclusion Criteria: * Volunteers who used prebiotic, probiotic and / or symbiotic volunteers at least 10 days prior to study day; * Volunteers diagnosed with hypothyroidism and / or diabetes or who reported hypoglycemia and not tolerance to fasting; * Women were asked about pregnancy, suspected pregnancy, use of contraceptive methods and menstrual cycle. If there was any possibility of pregnancy, based on these questions, the volunteer was excluded from the study.

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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.

Gastric emptying Intestinal transit time

Contacts and locations

Locations

  • Escola de Enfermagem - UFMG

    Belo Horizonte, Minas Gerais, 30130-100, Brazil

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