Front-of-package Label Effects in Latine and Limited English Proficiency Populations
NCT ID: NCT06293963
Last Updated: 2025-04-24
Study Results
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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COMPLETED
NA
3306 participants
INTERVENTIONAL
2024-08-09
2024-09-11
Brief Summary
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What front-of-package label design is most effective in helping Latino and low English proficiency consumers identify healthier and less healthy food products?
What front-of-package label design is most effective in helping Latino and low English proficiency consumers choose healthier food products?
Additionally, this experiment also aims to answer the following question:
Do the benefits of front-of-package label designs differ by English proficiency and parental status?
Participants will be randomly assigned to 1 of 4 types of front-of-package label designs and view their assigned label design on 3 sets of products. Each set will display 3 similar products, each high in either 1, 2, or 3 nutrients of concern. For each set, participants will select the product that they believe to be the healthiest, least healthy, and the product that they would most want to consume. Researchers will compare results across label designs.
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Detailed Description
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In a between-subjects experiment, researchers will randomize participants to 1 of 4 types of front-of-package label designs: a numerical label, an interpretive text-only label, an interpretive label with a magnifying glass icon, or separated interpretive labels with a magnifying glass icon. Participants will view their assigned label design on 3 similar products (each product high in either 1, 2, or 3 nutrients of concern) and complete selection tasks. These tasks will be repeated 3 times, each time with a different type of product (i.e., frozen meals, frozen pizzas, and frozen desserts), with the products displayed in random order.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
NONE
Study Groups
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Numerical label
Guideline Daily Amounts label
Labels that list the amount and percent of daily value of added sugar, sodium, or saturated fat, modeled after Guideline Daily Amounts labels.
Interpretive text-only label
Interpretive text-only label
Interpretive text-only labels that state when a product contains high amounts of added sugar, sodium, or saturated fat.
Interpretive magnifying glass icon label
Interpretive magnifying glass icon label
Interpretive labels that state when a product contains high amounts of added sugar, sodium, or saturated fat, containing a magnifying glass icon.
Separated interpretive magnifying glass icon label
Separated interpretive magnifying glass icon label
Interpretive labels that state when a product contains high amounts of added sugar, sodium, or saturated fat, containing a magnifying glass icon. Each nutrient will be on a separate label.
Interventions
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Guideline Daily Amounts label
Labels that list the amount and percent of daily value of added sugar, sodium, or saturated fat, modeled after Guideline Daily Amounts labels.
Interpretive text-only label
Interpretive text-only labels that state when a product contains high amounts of added sugar, sodium, or saturated fat.
Interpretive magnifying glass icon label
Interpretive labels that state when a product contains high amounts of added sugar, sodium, or saturated fat, containing a magnifying glass icon.
Separated interpretive magnifying glass icon label
Interpretive labels that state when a product contains high amounts of added sugar, sodium, or saturated fat, containing a magnifying glass icon. Each nutrient will be on a separate label.
Eligibility Criteria
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Inclusion Criteria
* Ages 18-55 years old
* Residing in US
Exclusion Criteria
* Less than 18 or greater than 55 years old
* Not residing in the United States
18 Years
55 Years
ALL
Yes
Sponsors
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Duke University
OTHER
Stanford University
OTHER
University of North Carolina, Chapel Hill
OTHER
Responsible Party
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Principal Investigators
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Marissa G Hall, PhD
Role: PRINCIPAL_INVESTIGATOR
University of North Carolina, Chapel Hill
Locations
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The University of North Carolina at Chapel Hill's Gillings School of Global Public Health
Chapel Hill, North Carolina, United States
Countries
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References
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Hall MG, Lee CJY, Campos AD, Serrano N, Taillie LS, Falbe J, Musicus A, Whitesell C, Martinez AV, Grummon AH. An RCT of front-of-package nutrition labels in Latino populations in the US. Am J Prev Med. 2025 Sep 20:108122. doi: 10.1016/j.amepre.2025.108122. Online ahead of print.
Hall MG, Lee CJY, Campos AD, Serrano N, Taillie LS, Falbe J, Musicus A, Whitesell C, Martinez AV, Grummon AH. Effects of front-of-package nutrition labels in Latine and limited English proficiency populations: A randomized trial. medRxiv [Preprint]. 2025 May 11:2025.05.09.25327177. doi: 10.1101/2025.05.09.25327177.
Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Other Identifiers
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24-0300a
Identifier Type: -
Identifier Source: org_study_id
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