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Study identifier: NCT07268508 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Impact of a Pro-diversity Gut Microbiota Diet After a Bariatric Surgery on Gut Microbiota, Eating Behaviour and Sensory Function

Condition: Obesity (Disorder) · Bariatric Surgery  ·  Sponsor: Hospices Civils de Lyon

PhaseNA
Planned participants60
Who can joinAll sexes, 25 Years to 65 Years
Healthy volunteersNo

About this study

Bariatric surgery is the most effective treatment for long-term weight loss and reducing obesity-related health risks. It alters the gastrointestinal tract as well as metabolic and hormonal functions, influencing eating behaviour. However, weight loss outcomes and long-term maintenance vary between patients, likely due to changes in the gut microbiota. Dietary recommendations aimed at improving microbiota diversity could help support sustained weight loss after surgery. The BariaGut Taste study aims to compare two dietary approaches following bariatric surgery: nutritional counselling promoting gut microbiota diversity versus standard nutritional counselling. One year after surgery, the study will evaluate differences in microbiota diversity, changes in food preferences and eating behaviours, sensory profiles (taste, smell), levels of digestive and gut hormones fasting, before and after eating, cardiometabolic parameters, mental health, physical activity, and more, to better understand Bariatric surgery is the most effective treatment for long-term weight loss and reducing obesity-related health risks. It alters the gastrointestinal tract as well as metabolic and hormonal functions, influencing eating behaviour. However, weight loss outcomes and long-term maintenance vary between patients, likely due to changes in the gut microbiota. Dietary recommendations aimed at improving microbiota diversity could help support sustained weight loss after surgery. The BariaGut Taste stu…

This description comes directly from the study's public registry record.

Talk to the study team

Julie-Anne NAZARE  ·  +33 6 88 87 09 62  ·  julie-anne.nazare@univ-lyon1.fr

Berenice SEGRESTIN

Always discuss trial participation with your own doctor first.

Locations (3)

Hospital Edouard Herriot, digestive surgery departmentLyon, FranceRecruiting
Centre de recherche en nutrition humaine de Rhône-AlpesPierre-Bénite, FranceNot Yet Recruiting
Hôpital Lyon sud, Endocrinology Diabetes Nutrition departmentPierre-Bénite, FranceNot Yet Recruiting

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Source record: clinicaltrials.gov/study/NCT07268508