Combined Effects of Simultaneous Variety and Portion Size on Meal Intake of Women

NCT ID: NCT05266183

Last Updated: 2022-10-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

44 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-03-07

Study Completion Date

2022-09-21

Brief Summary

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The primary purpose of this study is to investigate the combined effects of simultaneous meal variety and portion size on food intake at a meal. Additionally, other individual characteristics will be examined for their influence on the effects of simultaneous variety and portion size on meal intake.

Detailed Description

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Conditions

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Eating Behavior

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Participants

Study Groups

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Simultaneous Variety, Small Portion

3 different foods served in a small portion.

Group Type EXPERIMENTAL

Simultaneous Variety

Intervention Type OTHER

3 different foods served

Small Portion

Intervention Type OTHER

Small meal portion size

Simultaneous Variety, Large Portion

3 different foods served in a large portion.

Group Type EXPERIMENTAL

Simultaneous Variety

Intervention Type OTHER

3 different foods served

Large Portion

Intervention Type OTHER

Large meal portion size

Single-Food, Small Portion

1 food served in a small portion.

Group Type EXPERIMENTAL

Single-Food

Intervention Type OTHER

1 food served

Small Portion

Intervention Type OTHER

Small meal portion size

Single-Food, Large Portion

1 food served in a large portion.

Group Type EXPERIMENTAL

Single-Food

Intervention Type OTHER

1 food served

Large Portion

Intervention Type OTHER

Large meal portion size

Interventions

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Simultaneous Variety

3 different foods served

Intervention Type OTHER

Single-Food

1 food served

Intervention Type OTHER

Small Portion

Small meal portion size

Intervention Type OTHER

Large Portion

Large meal portion size

Intervention Type OTHER

Eligibility Criteria

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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
Minimum Eligible Age

20 Years

Maximum Eligible Age

65 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Jenny Craig, Inc.

INDUSTRY

Sponsor Role collaborator

Penn State University

OTHER

Sponsor Role lead

Responsible Party

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Barbara J. Rolls

Professor of Nutrition and Director of The Laboratory For The Study of Human Ingestive Behavior

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Laboratory for the Study of Human Ingestive Behavior, The Pennsylvania State University

University Park, Pennsylvania, United States

Site Status

Countries

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United States

Other Identifiers

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FoodVariety103

Identifier Type: -

Identifier Source: org_study_id

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