The Effect of Portion Sizes on Mood

NCT ID: NCT01725425

Last Updated: 2025-04-03

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

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

25 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-10-31

Study Completion Date

2025-12-31

Brief Summary

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The purpose of this study is to investigate whether different portion sizes will effect overall mood.

Detailed Description

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The objective of this investigation is to determine whether participants will have a change in mood based on the portion size of foods served. The specific aims of the study are:

1. Determine the effect of increasing portion sizes on mood.
2. Determine the effect of decreasing portion sizes on mood.

Conditions

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Mood Eating Patterns

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Control

Participants will receive equal amounts of foods.

Group Type EXPERIMENTAL

Control

Intervention Type OTHER

The control is designed to determine average mood.

Increase Portion Size

Participants will receive increased portion sizes.

Group Type EXPERIMENTAL

Increase Portion Size

Intervention Type OTHER

The purpose is to determine whether a change in mood will occur.

Decrease Portion Sizes

Participants will receive decreased portion sizes.

Group Type EXPERIMENTAL

Decrease Portion Size

Intervention Type OTHER

The purpose is to determine whether a change in mood will occur.

Mixed Portion Sizes

Participants will receive mixed portion sizes.

Group Type EXPERIMENTAL

Mixed Portions

Intervention Type OTHER

The purpose is to determine if a change in mood will occur.

Interventions

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Control

The control is designed to determine average mood.

Intervention Type OTHER

Increase Portion Size

The purpose is to determine whether a change in mood will occur.

Intervention Type OTHER

Decrease Portion Size

The purpose is to determine whether a change in mood will occur.

Intervention Type OTHER

Mixed Portions

The purpose is to determine if a change in mood will occur.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Age 18-35
* have a body mass index of 18.5 and 24.9 kg/m\^2
* be an unrestrained eater( scoring less than 12 on the Three Factor Eating Questionnaire)
* Report Being a non-smoker

Exclusion Criteria

* currently pregnant or nursing
* report being an athlete in training
* currently taking any medications that affect appetite or food intake
* Have a medical condition affecting eating or are currently following a therapeutic diet
* Report disliking foods used in the investigation
* Report having allergies to foods used in the investigation
Minimum Eligible Age

18 Years

Maximum Eligible Age

35 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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The University of Tennessee, Knoxville

OTHER

Sponsor Role lead

Responsible Party

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Hollie Raynor

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Hollie Raynor, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Tennessee

Locations

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The University of Tennessee-Knoxville

Knoxville, Tennessee, United States

Site Status

Countries

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United States

Other Identifiers

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8964B

Identifier Type: -

Identifier Source: org_study_id

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