Can probiotics soothe IBS in obesity? new study investigates

NCT ID NCT04760353

Completed Symptom relief Sponsor: University Hospital Rijeka Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether a daily probiotic powder could relieve irritable bowel syndrome (IBS) symptoms in 80 obese adults. Participants took either the probiotic or a placebo for 8 weeks. Researchers tracked symptom relief and changes in gut bacteria.

What this could mean

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

Active substance

Probiotic mixture (OMNi-BiOTiC STRESS) containing 9 bacterial strains and B vitamins

What this could lead to

If it works, this could point toward a simple probiotic supplement to ease IBS symptoms in people with obesity.

What could go wrong

This is a small, completed trial with only 80 participants. The results may not apply to everyone, and probiotics don't work for all.

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.

irritable bowel syndrome Obesity obesity disorder

As listed by the trial registrant

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

IBS (IRRITABLE BOWEL SYNDROME) OBESITY

Contacts and locations

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Locations

Clinical Hospital Centre

Rijeka, Croatia, 51000, Croatia
University Hospital Rijeka

Rijeka, Rijeka, 51000, Croatia