Varying the Energy Density and Portion Size of the Main Course After a First-course Salad

NCT ID: NCT01729390

Last Updated: 2012-11-20

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

53 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-09-30

Study Completion Date

2011-11-30

Brief Summary

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The purpose of this research is to determine whether varying the energy density and portion size of the main course will affect meal energy intake after consumption of a first course that has previously been shown to enhance satiety. It is hypothesized that increasing either the energy density or portion size of the main course will increase meal energy intake after consumption of the first course. It is also hypothesized that compared to when a first course is consumed, not consuming a first course will increase meal energy intake.

Detailed Description

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Conditions

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Obesity

Keywords

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Feeding behavior

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Participants

Study Groups

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Std ED Control

100% energy density and 133% portion size

Group Type EXPERIMENTAL

Energy density and portion size feeding study

Intervention Type OTHER

In a crossover design, adults are served breakfast and lunch, 1 day a week for 6 weeks. Breakfast is not varied across weeks. At 4 of the lunch meals, a salad first course will be served that needs to be eaten in its entirety. At these 4 meals the lunch entree will vary in energy density (100% and 133%) and portion size (100% and 133%). At the 2 lunch meals for which no first course is served, the lunch entree will be vary in energy density (100% and 133%) but be the same portion size (133%).

Inc ED Control

133% energy density and 133% portion size

Group Type EXPERIMENTAL

Energy density and portion size feeding study

Intervention Type OTHER

In a crossover design, adults are served breakfast and lunch, 1 day a week for 6 weeks. Breakfast is not varied across weeks. At 4 of the lunch meals, a salad first course will be served that needs to be eaten in its entirety. At these 4 meals the lunch entree will vary in energy density (100% and 133%) and portion size (100% and 133%). At the 2 lunch meals for which no first course is served, the lunch entree will be vary in energy density (100% and 133%) but be the same portion size (133%).

Std ED and Std PS

100% energy density and 100% portion size

Group Type EXPERIMENTAL

Energy density and portion size feeding study

Intervention Type OTHER

In a crossover design, adults are served breakfast and lunch, 1 day a week for 6 weeks. Breakfast is not varied across weeks. At 4 of the lunch meals, a salad first course will be served that needs to be eaten in its entirety. At these 4 meals the lunch entree will vary in energy density (100% and 133%) and portion size (100% and 133%). At the 2 lunch meals for which no first course is served, the lunch entree will be vary in energy density (100% and 133%) but be the same portion size (133%).

Std ED and Inc PS

100% energy density and 133% portion size

Group Type EXPERIMENTAL

Energy density and portion size feeding study

Intervention Type OTHER

In a crossover design, adults are served breakfast and lunch, 1 day a week for 6 weeks. Breakfast is not varied across weeks. At 4 of the lunch meals, a salad first course will be served that needs to be eaten in its entirety. At these 4 meals the lunch entree will vary in energy density (100% and 133%) and portion size (100% and 133%). At the 2 lunch meals for which no first course is served, the lunch entree will be vary in energy density (100% and 133%) but be the same portion size (133%).

Inc ED and Inc PS

133% energy density and 133% portion size

Group Type EXPERIMENTAL

Energy density and portion size feeding study

Intervention Type OTHER

In a crossover design, adults are served breakfast and lunch, 1 day a week for 6 weeks. Breakfast is not varied across weeks. At 4 of the lunch meals, a salad first course will be served that needs to be eaten in its entirety. At these 4 meals the lunch entree will vary in energy density (100% and 133%) and portion size (100% and 133%). At the 2 lunch meals for which no first course is served, the lunch entree will be vary in energy density (100% and 133%) but be the same portion size (133%).

Inc ED and Std PS

133% energy density and 100% portion size

Group Type EXPERIMENTAL

Energy density and portion size feeding study

Intervention Type OTHER

In a crossover design, adults are served breakfast and lunch, 1 day a week for 6 weeks. Breakfast is not varied across weeks. At 4 of the lunch meals, a salad first course will be served that needs to be eaten in its entirety. At these 4 meals the lunch entree will vary in energy density (100% and 133%) and portion size (100% and 133%). At the 2 lunch meals for which no first course is served, the lunch entree will be vary in energy density (100% and 133%) but be the same portion size (133%).

Interventions

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Energy density and portion size feeding study

In a crossover design, adults are served breakfast and lunch, 1 day a week for 6 weeks. Breakfast is not varied across weeks. At 4 of the lunch meals, a salad first course will be served that needs to be eaten in its entirety. At these 4 meals the lunch entree will vary in energy density (100% and 133%) and portion size (100% and 133%). At the 2 lunch meals for which no first course is served, the lunch entree will be vary in energy density (100% and 133%) but be the same portion size (133%).

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Adults from Penn State and the surrounding community

Exclusion Criteria

* Currently dieting
* Food allergies
Minimum Eligible Age

20 Years

Maximum Eligible Age

45 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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

NIH

Sponsor Role collaborator

Penn State University

OTHER

Sponsor Role lead

Responsible Party

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Barbara J. Rolls

Professor of Nutritional Sciences and Director of the Laboratory for the Study of Ingestive Behavior

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Barbara J Rolls

Role: PRINCIPAL_INVESTIGATOR

Penn State University

Locations

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

University Park, Pennsylvania, United States

Site Status

Countries

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United States

Other Identifiers

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5R01DK059853-11

Identifier Type: NIH

Identifier Source: secondary_id

View Link

FoodED501

Identifier Type: -

Identifier Source: org_study_id