Breath test reveals gut bacteria changes after weight loss surgery
NCT ID NCT02819037
First seen Dec 29, 2025 · Last updated May 24, 2026 · Updated 22 times
Summary
This study looked at how gastric bypass surgery changes the bacteria in the small intestine. Researchers measured hydrogen in the breath of 51 people with severe obesity before surgery and at several points up to two years after. The goal was to find out how often bacterial overgrowth happens and how it relates to digestion and nutrient absorption.
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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.
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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Contacts and locations
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Locations
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Centre Hospitalier d'Arras
Arras, 62022, France
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Centre Hospitalier de Douai
Douai, 59507, France
Conditions
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