Combined Effects of Variety and Portion Size on Meal Intake of Women
Status
Withdrawn
Conditions
Eating Behavior
Treatments
Other: Large Portion
Other: Single Food
Other: Small portion
Other: Simultaneous Variety
Other: Sequential Variety
Details and patient eligibility
About
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.
Sex
Female
Ages
20 to 65 years old
Volunteers
No Healthy Volunteers
Inclusion criteria
- 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
Exclusion criteria
- 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
Trial design
Primary purpose
Basic Science
Allocation
Randomized
Interventional model
Crossover Assignment
Masking
Single Blind
0 participants in 6 patient groups
Sequential Variety, Small Portion
Experimental group
Description:
3 courses each consisting of a different food served in a small portion.
Treatment:
Other: Sequential Variety
Other: Small portion
Sequential Variety, Large Portion
Experimental group
Description:
3 courses each consisting of a different food served in a large portion.
Treatment:
Other: Sequential Variety
Other: Large Portion
Simultaneous Variety, Small Portion
Experimental group
Description:
3 courses each consisting of 3 foods served in small portions.
Treatment:
Other: Simultaneous Variety
Other: Small portion
Simultaneous Variety, Large Portion
Experimental group
Description:
3 courses each consisting of 3 foods served in large portions.
Treatment:
Other: Simultaneous Variety
Other: Large Portion
Single Food, Small Portion
Experimental group
Description:
3 courses each consisting of the same food served in a small portion.
Treatment:
Other: Small portion
Other: Single Food
Single Food, Large Portion
Experimental group
Description:
3 courses each consisting of the same food served in a large portion.
Treatment:
Other: Large Portion
Other: Single Food
Trial contacts and locations
1
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Data sourced from clinicaltrials.gov
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