Impacts of Warning Labels on Ultra-Processed Foods
1 other identifier
interventional
4,000
1 country
1
Brief Summary
Purpose: The overall purpose of this study is to identify the impacts of an ultra-processed (UPF) health warning label and UPF identify warning label compared to a control label (i.e., a barcode). Participants: \~4,000 US Latino adults of parental age (18-55 years), approximately 50% of whom will have limited English proficiency, recruited from a Latino-focused panel company. Procedures: Participants will be randomly assigned to view food products with one of three label types: health warning labels, identity labels, or barcode control labels. Participants will be asked a series of questions about the products and the label they were assigned.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Aug 2024
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
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 28, 2024
CompletedFirst Posted
Study publicly available on registry
March 6, 2024
CompletedStudy Start
First participant enrolled
August 9, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 11, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
September 11, 2024
CompletedOctober 15, 2024
October 1, 2024
1 month
February 28, 2024
October 14, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Identification of a product as ultra-processed
Correct identification of a product as ultra-processed. Measured with the question, "Do you think this product is ultra-processed?" Response options are Yes, No, and I'm not sure.
Immediately after exposure to intervention, assessed during 1-time online study visit.
Secondary Outcomes (3)
Perceived product healthfulness of ultra-processed products
Immediately after exposure to intervention, assessed during 1-time online study visit.
Intentions to purchase ultra-processed products
Immediately after exposure to intervention, assessed during 1-time online study visit.
Perceived message effectiveness
Immediately after exposure to intervention, assessed during 1-time online study visit.
Study Arms (3)
Health Warning Label
EXPERIMENTALParticipants will view four products (a fruit-flavored drink, pretzels, a yogurt, and a breakfast cereal) each with a health warning label displayed on the front of package.
Identity Warning Label
EXPERIMENTALParticipants will view four products (a fruit-flavored drink, pretzels, a yogurt, and a breakfast cereal) each with an identity warning label displayed on the front of package.
Barcode Label
OTHERParticipants will view four products (a fruit-flavored drink, pretzels, a yogurt, and a breakfast cereal) each with a barcode control label displayed on the front of package.
Interventions
Message displayed on warning label is: "WARNING: Consuming ultra-processed food and drinks can cause weight gain, which increases the risk of obesity and type 2 diabetes."
Message displayed on warning label is: "WARNING: Ultra-processed food".
Eligibility Criteria
You may qualify if:
- Identifying as Latino or Hispanic
- Ages 18-55 years old
- Currently resides in the United States
You may not qualify if:
- Not identifying as Latino or Hispanic
- Less than 18 or greater than 55 years old
- Not residing in the United States
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
UNC Carolina Population Center
Chapel Hill, North Carolina, 27516, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Lindsey Smith Taillie, PhD
University of North Carolina, Chapel Hill
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
February 28, 2024
First Posted
March 6, 2024
Study Start
August 9, 2024
Primary Completion
September 11, 2024
Study Completion
September 11, 2024
Last Updated
October 15, 2024
Record last verified: 2024-10
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF
- Time Frame
- beginning 9 and continuing for 36 months following publication of study results.
- Access Criteria
- Investigator has approved IRB, IEC, or REB and an executed data use/sharing agreement with UNC.
A deidentified dataset and the corresponding survey codebook will be shared beginning 9 months and continuing for 36 months after publication provided the investigator who proposes to use the data has approval from an Institutional Review Board (IRB), Independent Ethics Committee (IEC), or Research Ethics Board (REB), as applicable, and executes a data use/sharing agreement with UNC. The study protocol, statistical analysis plan, and informed consent form will be published alongside as supplementary material.