NCT00436878

Brief Summary

The purpose of this study is to test the effects of large food portions on children's eating. Experiment 1 will test the effect of portion size on children's consumption of sweetened beverages; we hypothesize that serving large beverage portions will increase the amount of energy children consume from this food. Experiment 2 will test the effects of portion size on children's intake of fruits and vegetables (FV) affect intake whether such effects are moderated by children's FV preferences and; we hypothesize that serving large fruit and vegetable portions will produce increases in children's intake of these foods, particularly for children who like fruit and vegetables. Experiment 3 will evaluate how food energy density affects children's response to large portions; we hypothesize that large portions will have the greatest influence on children's energy consumption when foods are energy dense. Experiment 4 will begin to address perceptual mechanisms by which large portions affect children's eating.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Oct 2005

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2005

Completed
1.4 years until next milestone

First Submitted

Initial submission to the registry

February 16, 2007

Completed
3 days until next milestone

First Posted

Study publicly available on registry

February 19, 2007

Completed
4.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2011

Completed
Last Updated

July 12, 2018

Status Verified

July 1, 2018

Enrollment Period

5.5 years

First QC Date

February 16, 2007

Last Update Submit

July 10, 2018

Conditions

Keywords

Eating BehaviorChildrenPortion sizeExperimental

Outcome Measures

Primary Outcomes (2)

  • Intake of portion manipulated foods

    In each experimental condition; 4 times in each 2 x 2 factorial experiment

  • Total energy consumed

    In each experimental condition; 4 times in each 2 x 2 factorial experiment

Study Arms (1)

Portion Size

EXPERIMENTAL

Each experiment manipulated food portion size of beverages, entrees, and side dishes

Behavioral: Food portion size

Interventions

Each of four experiments involves a 2 x 2 within-subjects factorial design, in which the first factor is the portion size of a food served to children: foods will be served in a reference amount (i.e. 250 g macaroni and cheese) or doubled in size(i.e. 500 g of macaroni and cheese). In the Experiment 1, the second factor of the 2 x 2 design is meal type: whether the food is consumed at a meal or a snack. In experiment #2, the second factor is food type: fruit vs. vegetable. In experiment #3, the second factor is entree energy density: a regular energy density or a 40% greater energy density. In experiment #4, the second factor is plate size: a 6 inch plate vs. a 10 inch plate.

Portion Size

Eligibility Criteria

Age5 Years - 6 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • to 6 years

You may not qualify if:

  • severe food allergies
  • chronic illnesses or medication use affecting food intake
  • dislike of foods on the menu

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Center for Obesity Research, Temple University

Philadelphia, Pennsylvania, 19140, United States

Location

USDA\ARS Children's Nutrition Research Center

Houston, Texas, 77030, United States

Location

MeSH Terms

Conditions

Feeding Behavior

Condition Hierarchy (Ancestors)

Behavior, AnimalBehavior

Study Officials

  • Jennifer O Fisher, PhD

    Baylor College of Medicine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 16, 2007

First Posted

February 19, 2007

Study Start

October 1, 2005

Primary Completion

April 1, 2011

Study Completion

April 1, 2011

Last Updated

July 12, 2018

Record last verified: 2018-07

Locations