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Protein Digestion After Bariatric Surgery in Older Adults

CompletedN/A

Sponsor: Universitaire Ziekenhuizen KU Leuven

Conditions: Overweight and Obesity, Bariatric Surgery Candidate, Aging, Protein Malabsorption

Interventions: Dual isotope protein digestibility method

Countries: Belgium

The goal of this clinical trial is to investigate protein digestibility after bariatric surgery. Does protein digestibility decrease after Roux-en-Y-Gastric Bypass? Does protein digestibility decrease after Sleeve Gastrectomy surgery? Does protein digestibility effect the ability to meet protein requirements?

Eligibility overview

Sex: ALL

Age: 18 Years to —

Healthy volunteers: Yes

Study type: OBSERVATIONAL

Eligibility criteria

Inclusion Criteria:

* Signed informed consent
* Group 1,2,3: Age 65 years or older
* Group 4,5,6: Age 18 to 65 years
* Group 1,2,4,5: Previous bariatric surgery for obesity 1 - 10 years ago
* Group 3,6: No previous weight loss surgery

Exclusion Criteria:

* Current diagnosis of cancer
* Advanced organ failure, including chronic kidney disease Stage 5, liver cirrhosis Stage 3, intestinal failure, heart failure stage D, or chronic obstructive pulmonary disease stage 4.
* Immobility
* Neuromuscular degenerative conditions
* Gastrointestinal conditions including coeliac disease, Crohn's disease, previous resection of the small intestine, gastroparesis
* Unable to follow the procedures of the studies due to cognitive impairment such as diagnosed dementia.
* Allergy/intolerance to milk, or soy or spirulina

Locations (2)

Leuven, Flemish Brabant, Belgium
Leuven, Vlaams Brabant, Belgium