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Combined Effects of Variety and Portion Size on Meal Intake of Women
1 other identifier
interventional
N/A
1 country
1
Brief Summary
The primary purpose of this study is to investigate the combined effects of meal variety and portion size on food intake at a meal. The study will also investigate relationships with eating microstructure such as eating rate and bite size. Additionally, other individual characteristics will be examined for their influence on the effects of variety and portion size on meal intake.
Trial Health
Trial Health Score
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Started Feb 2022
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 15, 2021
CompletedFirst Posted
Study publicly available on registry
January 4, 2022
CompletedStudy Start
First participant enrolled
February 20, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 20, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
January 27, 2023
CompletedMarch 4, 2022
February 1, 2022
11 months
December 15, 2021
February 17, 2022
Conditions
Outcome Measures
Primary Outcomes (2)
Change in intake by weight
Weight (grams) of all meal components consumed
Weeks 1, 2, 3, 4, 5, 6
Change in energy intake
Energy intake (kilocalories) of all meal components consumed, calculated from weight and energy density
Weeks 1, 2, 3, 4, 5, 6
Secondary Outcomes (15)
Change in bite count
Weeks 1, 2, 3, 4, 5, 6
Change in meal duration
Weeks 1, 2, 3, 4, 5, 6
Change in mean eating rate
Weeks 1, 2, 3, 4, 5, 6
Change in mean bite size
Weeks 1, 2, 3, 4, 5, 6
Change in sip count
Weeks 1, 2, 3, 4, 5, 6
- +10 more secondary outcomes
Study Arms (6)
Sequential Variety, Small Portion
EXPERIMENTAL3 courses each consisting of a different food served in a small portion.
Sequential Variety, Large Portion
EXPERIMENTAL3 courses each consisting of a different food served in a large portion.
Simultaneous Variety, Small Portion
EXPERIMENTAL3 courses each consisting of 3 foods served in small portions.
Simultaneous Variety, Large Portion
EXPERIMENTAL3 courses each consisting of 3 foods served in large portions.
Single Food, Small Portion
EXPERIMENTAL3 courses each consisting of the same food served in a small portion.
Single Food, Large Portion
EXPERIMENTAL3 courses each consisting of the same food served in a large portion.
Interventions
3 courses each consisting of a different food
3 courses each consisting of 3 foods
3 courses each consisting of the same food
Small meal portion size
Large meal portion size
Eligibility Criteria
You may qualify if:
- Be willing and able to travel to Penn State University Park campus weekly for meals
- Be fully vaccinated against COVID-19
- Be a woman 20 - 65 years old
- Regularly eat 3 meals/day
- Be willing to refrain from drinking alcohol the day before and during test days
- Have a body mass index between 18.0 and 35.0 kg/m\*m
- Be willing to refrain from eating after 10 pm the evening before test sessions
- Be willing to participate in all study procedures
You may not qualify if:
- Must not be a smoker
- Must not be an athlete in training
- Must not be pregnant or breastfeeding at the time of screening
- Must not have taken prescription or non-prescription drugs that may affect appetite or food intake within the last 3 months
- Must not dislike or be unable to eat the test foods (because of allergies, intolerance, or dietary restrictions)
- Must not have a high variability in liking of the test foods
- Must not be currently dieting to gain or lose weight
- Must not have a health condition that affects appetite
- Must not have participated in a similar study in our lab in the past year
- Must not be a student, faculty, or staff member in nutritional sciences or psychology
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Penn State Universitylead
- Jenny Craig, Inc.collaborator
Study Sites (1)
Laboratory for the Study of Human Ingestive Behavior, The Pennsylvania State University
University Park, Pennsylvania, 16802, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- BASIC SCIENCE
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Nutrition and Director of The Laboratory For The Study of Human Ingestive Behavior
Study Record Dates
First Submitted
December 15, 2021
First Posted
January 4, 2022
Study Start
February 20, 2022
Primary Completion
January 20, 2023
Study Completion
January 27, 2023
Last Updated
March 4, 2022
Record last verified: 2022-02
Data Sharing
- IPD Sharing
- Will not share