The Effects of Protein Source on Appetite Control, Satiety, and Subsequent Food Intake
Public ClinicalTrials.gov record NCT03154606. 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.
The investigators propose a randomized, tightly-controlled breakfast trial in normal to overweight adults that will test whether the consumption of various types of protein-rich meals, containing \~24g of protein, will differentially alter food intake and meal initiation through proposed appetite and satiety mechanisms. Aim 1: To examine whether the consumption of protein-rich meals that vary in protein quality (source) effect: 1. postprandial feelings of hunger, fullness, desire to eat, prospective food consumption 2. postprandial fluctuations in key appetite and satiety hormones 3. eating initiation (i.e., motivation to eat (again)) 4. food cravings Aim 2: To examine whether the consumption of protein-rich meals that vary in protein quality (source) effect: 1. energy intake and food choice within the breakfast meal 2. energy intake and food choice at the next eating occasion 3. energy intake and food choice across the entire day
Study identification
- NCT ID
- NCT03154606
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 35 participants
Conditions and interventions
Conditions
Interventions
- Micellar Casein (#1) Other
- Micellar Casein (#2) Other
- Calcium Caseinate Other
- Sodium Caseinate Other
- Milk Protein Isolate Other
- Pure Protein Blend Other
- Whey Protein Isolate Other
- Native Whey Protein Isolate Other
- Soy Protein Other
- Pea Protein Other
- Native Whey: Micellar Casein (50:50) blend Other
- Carbohydrate Control Other
Other
Eligibility (public fields only)
- Age range
- 20 Years to 40 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
- Mar 20, 2017
- Primary completion
- Jul 26, 2018
- Completion
- Jul 26, 2018
- Last update posted
- May 1, 2019
2017 – 2018
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Purdue University | West Lafayette | Indiana | 47907 | — |
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 NCT03154606, 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 May 1, 2019 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03154606 live on ClinicalTrials.gov.