The Effect of Portion Sizes on Mood

The University of Tennessee, Knoxville

Status: Active, not recruiting

Conditions: Mood; Eating Patterns

Treatments: Other: Increase Portion Size; Other: Mixed Portions; Other: Decrease Portion Size; Other: Control

Study type: Interventional

Funder types: Other

Identifiers

NCT01725425

8964B

Details and patient eligibility

About

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

Full description

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.

Enrollment: 25 estimated patients

Sex: All

Ages: 18 to 35 years old

Volunteers: Accepts Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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25 participants in 4 patient groups

Control

Experimental group

Description:

Participants will receive equal amounts of foods.

Treatment:

Other: Control

Increase Portion Size

Experimental group

Description:

Participants will receive increased portion sizes.

Treatment:

Other: Increase Portion Size

Decrease Portion Sizes

Experimental group

Description:

Participants will receive decreased portion sizes.

Treatment:

Other: Decrease Portion Size

Mixed Portion Sizes

Experimental group

Description:

Participants will receive mixed portion sizes.

Treatment:

Other: Mixed Portions