Intake Promoting Effects of Large Portions in Children

The recruitment status of this study is unknown because the information has not been verified recently.

Verified June 2010 by Temple University.
Recruitment status was Recruiting

Sponsor:

Collaborator:

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Information provided by:

Temple University

ClinicalTrials.gov Identifier:

NCT00436878

First received: February 16, 2007

Last updated: February 4, 2011

Last verified: June 2010

History of Changes

Purpose

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.

Condition	Intervention
Food Intake	Behavioral: Food portion size

Study Type:	Interventional
Study Design:	Allocation: Non-Randomized Endpoint Classification: Bio-equivalence Study Intervention Model: Single Group Assignment Masking: Open Label Primary Purpose: Treatment

Further study details as provided by Temple University:

Primary Outcome Measures:

Intake of portion manipulated foods [ Time Frame: In each experimental condition; 4 times in each 2 x 2 factorial experiment ] [ Designated as safety issue: No ]
Total energy consumed [ Time Frame: In each experimental condition; 4 times in each 2 x 2 factorial experiment ] [ Designated as safety issue: No ]

Estimated Enrollment:	160
Study Start Date:	October 2005
Estimated Primary Completion Date:	July 2010 (Final data collection date for primary outcome measure)

Intervention Details:

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.

Detailed Description:

The emerging epidemic of overweight among underscores the need to identify contributing environmental factors. Marketplace trends for excessive and growing portion sizes in and outside the home have reinforced concerns that large portions may directly contribute by promoting excessive intake. To date, however, systematic investigation of portion size effects on children's eating has been extremely limited. Two laboratory studies have reported that serving large portions of macaroni and cheese to young children promoted energy consumption at meals. Whether portion size effects would be seen with other foods of varying energy content and preference is unknown. Of particular public health interest is whether serving large portions may affect children's intake of sweetened beverages, fruits and vegetables, and energy dense foods. This study will address these questions using an experimental approach to test the effects of portion size on children's eating.

Eligibility

Ages Eligible for Study:	5 Years to 6 Years
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	Yes

Criteria

Inclusion Criteria:

5 to 6 years

Exclusion Criteria:

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

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00436878

Locations

United States, Texas
USDA\ARS Children's Nutrition Research Center	Recruiting
Houston, Texas, United States, 77030
Contact: Joanne Salman, MS 713-798-7038 jsalman@bcm.edu
Principal Investigator: Jennifer O Fisher, PhD

Sponsors and Collaborators

Temple University

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Investigators

Principal Investigator:

Jennifer O Fisher, PhD

Baylor College of Medicine

More Information

No publications provided

Responsible Party:	Jennifer Orlet Fisher, PhD, Assistant Professor of Pediatrics, Baylor College of Medicine
ClinicalTrials.gov Identifier:	NCT00436878 History of Changes
Other Study ID Numbers:	DK71095, R01DK071095
Study First Received:	February 16, 2007
Last Updated:	February 4, 2011
Health Authority:	United States: Federal Government

Keywords provided by Temple University:

Eating Behavior
Children
Portion size
Experimental

ClinicalTrials.gov processed this record on May 23, 2013

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