Obesity Clinical Trial - Liking of Snack Foods

Status Completed

Clinical Trial Summary

Specific Aims: Environmental factors contributing to overconsumption, such as larger food portion sizes, may be contributing to the obesity epidemic. The objective of the proposed study is to examine the independent and combined effects of portion size and quantity of food on intake in normal weight males and females. Participants will be randomly assigned to one of four conditions varying in the portion size and quantity of junk food provided: small quantity of food packaged in small portions (SSP), small quantity of food packaged in large portions (SLP), large quantity of food packaged in small portions (LSP), and large quantity of food packaged in large portions (LLP). A box containing four different junk foods, packaged according to one of the four conditions, will be given to participants to take home for three days. The total amount of food consumed from the box over the three days will be measured. It is anticipated that portion size and quantity of food, both independently and combined, will influence intake, such that larger portion sizes and quantity of food provided to participants will produce greater intake.Subject Population: We propose to recruit 60 healthy men and women, aged 18-50 years, with a body mass index (BMI) of less than or equal to 28. Participants will be non-smokers, unrestrained eaters, and have no known food allergies to the foods used in the investigation.Methods/Design: Participants will be randomly assigned to one of four conditions, varying in portion size (small versus large) and quantity of food provided (small versus large). A box containing four junk foods, packaged according to one of the conditions, will be provided to participants. They will be encouraged to eat as much or as little of the food as they want, but to at least taste each of the four foods over the three-day period. During this time, they will be instructed to not eat any other junk foods. At the end of the three-day period, participants will return the box with any remaining uneaten junk food.Data Analyses: The dependent variables, the amount of grams and kcals consumed from the provided junk foods, will be examined between the four different conditions.Significance: If portion size and quantity are related to intake, subsequent studies will develop clinical interventions related to reducing portion size and/or quantity of food available in the household.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00200213
Study type	Interventional
Source	The Miriam Hospital
Contact
Status	Completed
Phase	N/A
Start date	February 2004
Completion date	March 2005

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Liking of Snack Foods - Sub-Study 1

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms