Fat Taste Sensory Study
Public ClinicalTrials.gov record NCT03540693. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Fat is the most energy dense macronutrient and consuming fat has been positively correlated to obesity. Individuals afflicted with obesity crave fat more frequently, have a higher preference for fatty taste, and consume a higher quantity of fatty foods. People who have undergone Roux-en-Y Gastric Bypass (RYGB) or Sleeve Gastrectomy (SG) weight-loss surgeries dramatically decrease their fat preferences and consumption of fat, at least within the first year after surgery. These surgeries are very effective in helping people lose weight over the first couple of years; however, approximately 30% of those who undergo these surgeries start regaining weight after the second year mark. Why some people are able to keep the weight off long-term but others are unable to is unclear. In addition, it is well-known that fat can modify the flavor of foods and flavor plays a critical role in consumption, as well as in responses that gear up the body to consume the food. These are known as cephalic phase responses and include neural, physiological, and hormonal aspects. The main goals of the study are twofold: 1) To test the immediate effects of RYGB surgery, SG surgery, and laparoscopic gastric banding (LAGB) surgery (a weight loss control group) on fat preferences and sensory perception, and 2) to compare fat preferences and sensory perception between those who are able to achieve sustained weight loss 2-5 years after RYGB or SG surgery and those who either regained weight or did not lose the desired amount.
Study identification
- NCT ID
- NCT03540693
- Recruitment status
- Not listed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 105 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 18 Years to 64 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Apr 5, 2018
- Primary completion
- Apr 5, 2023
- Completion
- Jul 5, 2023
- Last update posted
- Apr 27, 2021
2018 – 2023
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Illinois at Urbana Champaign | Urbana | Illinois | 61801 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03540693, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 27, 2021 · Synced Sep 11, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03540693 live on ClinicalTrials.gov.