Poop pills from skinny donors: a new weapon against obesity?

NCT ID NCT06268990

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

Summary

This completed pilot study tested whether transferring gut bacteria from lean donors or from people who had gastric bypass surgery could improve metabolism in 29 obese adults with prediabetes or diabetes. Participants received fecal transplants, and researchers measured changes in insulin sensitivity and blood sugar. The goal was to see if changing gut bacteria could help manage obesity and related conditions.

What this could mean

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

Active substance

fecal microbiota transplantation

What this could lead to

If it works, this could point toward a new way to treat obesity and related metabolic problems by changing gut bacteria.

What could go wrong

This is a small, early pilot study with only 29 people. Results may not apply to everyone, and the effects might be short-lived.

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.

abdominal obesity-metabolic syndrome diabetes mellitus Insulin Resistance metabolic syndrome X morbid obesity Obesity prediabetes syndrome

As listed by the trial registrant

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

Contacts and locations

Locations

  • Department of Internal Medicine, Medical University Graz

    Graz, 8010, Austria