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Changing Portion Size Descriptions in a Cafeteria

NCT06263621 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 101481

Last updated 2024-07-11

No results posted yet for this study

Summary

The goal of this this intervention is to test the degree to which a portion size labeling intervention influences consumer selection of smaller portions at two large cafés. The main question it aims to answer is: Do consumers order fewer calories when the portion size label for the smaller entree is called "standard" instead of "small"?

Participants will order lunch as usual in the two cafes (one intervention, one control) for 5.5 months, and all order items will be recorded in the check-out system. One cafe will receive the labeling intervention, while the other will not. Researchers will compare the average calories per order between the two cafes to see if there are differences.

Conditions

  • Food Selection
  • Obesity
  • Weight Gain
  • Food Preferences

Interventions

BEHAVIORAL

Intervention "Standard"

The two cafes will offer entrees in two sizes, a smaller and larger size. In the intervention cafe, the smaller size will be labeled "Standard" during the intervention period, and "Small" during all other times. In the control cafe, the smaller size will always be labeled "Small." The larger size will always be labeled "Large" for both cafes during the duration of the study.

Sponsors & Collaborators

Principal Investigators

  • Sophia V Hua, PhD, MPH · University of Pennsylvania

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Model
PARALLEL

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-01-11
Primary Completion
2024-05-29
Completion
2024-05-29

Countries

  • United States

Study Locations

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Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06263621 on ClinicalTrials.gov