Online Food and Beverage Labels and Vending Machine Selections
VLO
A Large-scale, Long-term, Randomized Trial of Nutrition Labeling Interventions
2 other identifiers
interventional
8,145
1 country
1
Brief Summary
The aim of this study is to compare the impact of 5 different types of front of package (FOP) food and beverage labels: 1) calorie labels \[control\], 2) green labels on healthy foods, 3) red/yellow/green labels on less healthy/moderately healthy/healthy foods, 4) physical activity calorie equivalent labels, and 5) "High in" nutrient warning labels) on consumers' beverage and snack selections.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Nov 2022
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 15, 2022
CompletedFirst Posted
Study publicly available on registry
June 27, 2022
CompletedStudy Start
First participant enrolled
November 16, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 3, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
December 3, 2022
CompletedResults Posted
Study results publicly available
December 20, 2023
CompletedDecember 20, 2023
December 1, 2023
17 days
June 15, 2022
November 30, 2023
December 18, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Number of Participants Purchasing Beverages With Calories
Participants will select a beverage to purchase from the online vending machine. Outcome is binary: purchased a beverage with calories or not.
The survey will take up to 20 minutes.
Calories Purchased From Beverages, if Beverage With Calories Chosen
Participants will select a beverage to purchase from the online vending machine. Outcome is calories in beverage chosen to purchase - only for those participants who chose a beverage with calories.
The survey will take up to 20 minutes.
Calories Purchased From Snacks
Participants will select a snack to purchase from the online vending machine. Outcome is calories in snacks chosen to purchase.
The survey will take up to 20 minutes.
Secondary Outcomes (33)
Likelihood of Selecting a Healthy Beverage
The survey will take up to 20 minutes.
Likelihood of Selecting a Moderately Healthy Beverage
The survey will take up to 20 minutes.
Likelihood of Selecting a Less Healthy Beverage
The survey will take up to 20 minutes.
Likelihood of Selecting a Healthy Snack
The survey will take up to 20 minutes.
Likelihood of Selecting a Moderately Healthy Snack
The survey will take up to 20 minutes.
- +28 more secondary outcomes
Study Arms (5)
Control
ACTIVE COMPARATORCalorie labels shown on front of product packaging
Green labels
EXPERIMENTALGreen label added to front of product packaging for healthy products; no additional labels shown for "less healthy" products
Traffic light labels
EXPERIMENTALRed/yellow/green labels added to front of product packaging for less healthy/moderately healthy/healthy products, respectively
Physical activity calorie equivalent labels
EXPERIMENTALLabels added to front of product packaging that display products' calorie content in terms of physical activity required to burn those calories
"High in" nutrient warning labels
EXPERIMENTALLabels added to front of product packaging that signal when the product exceeds thresholds for sugar, sodium, saturated fat, or calorie content
Interventions
Calories for all beverages and foods
Green labels only for beverages and foods scored as healthy
All beverages and foods labeled as either healthy (green), moderately healthy (yellow), or less healthy (red)
All beverages and foods labeled with physical activity required to burn their calories
Warning labels only for beverages and foods that exceed the thresholds for sugar, sodium, saturated fat, or calorie content
Eligibility Criteria
You may qualify if:
- Participants will be US adults
- Ages 18 or older
- With an over-sample of adults with lower educational attainment (some college or less)
You may not qualify if:
- Younger than 18
- Non-US
- Educational quota filled
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Pennsylvania
Philadelphia, Pennsylvania, 19104, United States
Related Publications (1)
Grummon AH, Gibson LA, Musicus AA, Stephens-Shields AJ, Hua SV, Roberto CA. Effects of 4 Interpretive Front-of-Package Labeling Systems on Hypothetical Beverage and Snack Selections: A Randomized Clinical Trial. JAMA Netw Open. 2023 Sep 5;6(9):e2333515. doi: 10.1001/jamanetworkopen.2023.33515.
PMID: 37703015DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Laura Gibson
- Organization
- University of Pennsylvania
Study Officials
- PRINCIPAL INVESTIGATOR
Christina A Roberto, PhD
University of Pennsylvania
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 15, 2022
First Posted
June 27, 2022
Study Start
November 16, 2022
Primary Completion
December 3, 2022
Study Completion
December 3, 2022
Last Updated
December 20, 2023
Results First Posted
December 20, 2023
Record last verified: 2023-12
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- SAP
- Time Frame
- Starting 6 months after publication
- Access Criteria
- Public
In the consenting process, participants agreed that de-identified data produced from this project may be distributed for future research studies without additional informed consent. After analysis, we will upload the de-identified data to ResearchBox for public sharing.