Obesity
Conditions
Brief summary
Several studies report changes in food preferences in favor of low energy density foods after bariatric surgery and changes in scores of liking and desire to eat, as well as changes in hedonic evaluation certain foods. However, only one study was held in a more realistic condition of consumption by using real food, looking at some aspects of food preferences and giving contradictory results. We hypothesise that food preferences are different between obese people with and without a bariatric surgery. The main objective of this study is to compare the differences in food quality (proportion of total energy intake from foods with high energy density versus foods with low energy density), evaluated during a standardized and validated buffet between adult women with severe complicated or morbid obesity and women who have undergone bariatric surgery in the last 12 months.
Interventions
OTHEREvaluation of food preferences during a standardized and validated buffet.
The dietary preferences of people will be collected by a direct measurement of eating behavior in front of a dedicated and standardized ad-libitum buffet. As part of this buffet, 3 dichotomous categories of food will be studied: * high / low in fat (HF / LF) * high / low in carbohydrates (HC / LC) * high / low in protein (HP / LP). During the buffet, participants will be filmed to study their food choices and the microstructure of their meal. We will define food preferences as the relative consumption choices of the food categories studied. We will also collect the time spent at the buffet, the duration of ingestion, the total duration of the meal, the number of bites per minute, the total number of bites and the number of bites by type of food. Weighing's will be carried out before and after consumption in order to determine the total energy intake and the macronutrient intake (proteins, lipids, carbohydrates) of the participants.
Sponsors
Hospices Civils de Lyon
Study design
Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 65 Years
Inclusion criteria
* Woman from 18 to 65 years old (included) * Person capable of going to the Institut Paul Bocuse Research Center, Bellecour platform, 20 Place Bellecour, 69002 Lyon * Person who agree to participate in the study * Person having signed the consent of image rights * For the surgery group: person who has undergone bariatric surgery (except gastric band) * For the control group: person with a BMI ≥ 35 kg / m2 who did not benefit from bariatric surgery
Exclusion criteria
* Person with a food allergy or food intolerance to at least one of the study products * Person excluding certain foods from their diet for religious or personal reasons. * Person who smoke * Person with severe digestive disorders, dysphagia, abdominal pain * Person who cannot give her agreement, not mastering the French language * Person who has exceeded the annual amount of compensation in the year for participation in research protocols * Pregnant or breastfeeding woman or not taking effective contraception * Person with a history of pathology which may interfere according to the investigator with the criteria of the study (ENT, neurological, upper digestive pathologies, ...) * For the surgery group: conversion of any type of bariatric surgery
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Food preference for high energy dense foods | Day 1 | The main endpoint of the study is the proportion of total energy intake from foods with high energy density versus foods with low energy density evaluated during a standardized and validated buffet. |
Countries
France
Outcome results
None listed