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Photographic Food Recognition and Meal Size Estimation Before and After Roux-en-Y Gastric Bypass

NCT04600596 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 54

Last updated 2023-08-18

No results posted yet for this study

Summary

Direct measurements of changes in food selection in humans after RYGB have been limited by the unreliability of patients, which poses significant methodological and conceptual challenges to researchers and study design. Self-monitoring requires time and effort, and many find tracking of dietary intake tedious, which contributes to attrition. Direct measurements, however, represent an essential component in the attempt to understand how RYGB alters eating and food preferences, but laboratory settings preclude a real-life environment.

The aim of this study is to investigate changes in food preferences, total energy intake of the three primary macronutrients and meal patterns between obese women (BMI ≥ 35) before and after Roux-en-Y gastric bypass and lean (BMI ≤ 25) and obese (BMI ≥ 35) controls by means of photographic food recognition with a mobile application.

Conditions

  • Obesity, Morbid
  • Bariatric Surgery
  • Roux-en-Y Gastric Bypass
  • Food Preferences

Interventions

BEHAVIORAL

Recording of food intake.

The food intake is recorded with a photographic food recognition mobile application. The total energy expenditure is recorded with the DLW method.

Sponsors & Collaborators

  • Marco Bueter

    lead OTHER

Principal Investigators

  • Marco Bueter, MD, PhD · University of Zurich

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-06-01
Primary Completion
2023-01-16
Completion
2023-01-16

Countries

  • Switzerland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04600596 on ClinicalTrials.gov