Effects of Variety and Portion Size on Meal Intake of Adults
Status
Withdrawn
Conditions
Eating Behavior
Treatments
Other: High Variety
Other: Small Portion Size
Other: Large Portion Size
Other: Low variety
Other: With Beverage
Other: Without Beverage
Details and patient eligibility
About
The primary purpose of this study is to gain a better understanding of the combined effects of meal variety and portion size on food intake at a meal. The study will also explore 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 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
Low Variety Small Portion Without Beverage
Experimental group
Description:
Test meal with food components mixed together (low variety) with a small portion of food served without water
Treatment:
Other: Without Beverage
Other: Small Portion Size
Other: Low variety
High Variety Small Portion Without Beverage
Experimental group
Description:
Test meal with food components separated on the plate (high variety) with a small portion of food served without water
Treatment:
Other: Without Beverage
Other: High Variety
Other: Small Portion Size
Low Variety Small Portion With Beverage
Experimental group
Description:
Test meal with food components mixed together (low variety) with a small portion of food and water
Treatment:
Other: With Beverage
Other: Small Portion Size
Other: Low variety
High Variety Small Portion With Beverage
Experimental group
Description:
Test meal with food components separated on the plate (high variety) with a small portion of food and water
Treatment:
Other: With Beverage
Other: High Variety
Other: Small Portion Size
Low Variety Large Portion With Beverage
Experimental group
Description:
Test meal with food components mixed together (low variety) with a large portion of food and water
Treatment:
Other: With Beverage
Other: Large Portion Size
Other: Low variety
High Variety Large Portion With Beverage
Experimental group
Description:
Test meal with food components separated on the plate (high variety) with a large portion of food and water
Treatment:
Other: With Beverage
Other: High Variety
Other: Large Portion Size
Trial contacts and locations
1
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Data sourced from clinicaltrials.gov
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