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Ultra-Processed Foods, Palatability, Appetite, and Gastrointestinal Transit
Sponsor: Purdue University
Summary
The goal of this clinical trial is to learn how food processing level affects appetite and gastrointestinal transit time when meal palatability is changed. Participants will complete one screening visit and four test visits. During each test visit, participants will consume one of four meals that differ by food processing level and palatability: high-palatability ultra-processed food, low-palatability ultra-processed food, high-palatability non-ultra-processed food, or low-palatability non-ultra-processed food. The main questions this study aims to answer are whether food processing and palatability affect appetite sensations and gastrointestinal transit time. Participants will rate appetite sensations during each test visit and provide breath samples to measure gastrointestinal transit time.
Official title: Ultra-Processed Foods - Palatability and Appetite
Key Details
Gender
All
Age Range
18 Years - 60 Years
Study Type
INTERVENTIONAL
Enrollment
40
Start Date
2024-09-24
Completion Date
2026-04-30
Last Updated
2026-05-22
Healthy Volunteers
Yes
Interventions
Palatable Ultra-Processed Food Meal
Participants will consume a palatable ultra-processed test meal during one study visit. The meal will consist of commonly available ultra-processed food items and will be used to assess appetite sensations, meal palatability, and gastrointestinal transit time.
Unpalatable Ultra-Processed Food Meal
Participants will consume an unpalatable ultra-processed test meal during one study visit. Palatability will be reduced by adding organic bitter melon powder to the ultra-processed meal. The meal will be used to assess appetite sensations, meal palatability, and gastrointestinal transit time.
Palatable Non-Ultra-Processed Food Meal
Participants will consume a palatable non-ultra-processed test meal during one study visit. The meal will consist of commonly available non-ultra-processed food items and will be used to assess appetite sensations, meal palatability, and gastrointestinal transit time.
Unpalatable Non-Ultra-Processed Food Meal
Participants will consume an unpalatable non-ultra-processed test meal during one study visit. Palatability will be reduced by adding organic bitter melon powder to the non-ultra-processed meal. The meal will be used to assess appetite sensations, meal palatability, and gastrointestinal transit time.
Locations (1)
Purdue University
West Lafayette, Indiana, United States