Effects of UPF Warning Labels on Social Media Among Teens and Young Adults
NCT ID: NCT07227519
Last Updated: 2025-11-12
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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NOT_YET_RECRUITING
NA
1000 participants
INTERVENTIONAL
2025-12-01
2025-12-20
Brief Summary
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Detailed Description
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Participants will complete a between-subjects online randomized experiment. They will be randomized into either a UPF warning label group or a no label control group. Participants will view four social media posts featuring UPFs (with or without warning labels based on their assigned group) in random order. These posts are based on real Instagram advertisements from leading food and beverage companies; two posts will feature sugar-sweetened beverages and two will feature fast-food menu items. After viewing each post, participants will answer questions assessing consumer understanding, purchase intentions, and perceived healthfulness. At the end of the survey, all participants will also respond to questions regarding perceptions of control over healthy eating and policy support for UPF warnings.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
NONE
Study Groups
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UPF Warning Labels
UPF warning labels will be placed beneath each social media post. Each label will feature an icon accompanied by explanatory text, using the exact health risk wording proposed in the Childhood Diabetes Reductions Act: "Warning: consuming ultra-processed foods and drinks can cause weight gain, which increases the risk of obesity and type-2 diabetes". All text will be left-aligned. The icon will consist of exclamation marks within a yellow triangle. The warning label will be large and highly visible and enclosed within a bold rectangular border.
UPF Warning Labels
Participants will view four Instagram posts featuring UPFs, displayed with warning labels
No Label (Control)
No label
No Labels (Control)
Participants will view four Instagram posts featuring UPFs, displayed without warning labels
Interventions
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UPF Warning Labels
Participants will view four Instagram posts featuring UPFs, displayed with warning labels
No Labels (Control)
Participants will view four Instagram posts featuring UPFs, displayed without warning labels
Eligibility Criteria
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Inclusion Criteria
* Reside in the US
* Can read and speak English
Exclusion Criteria
* Reside outside of the United States
* Unable to complete a survey in English
13 Years
29 Years
ALL
Yes
Sponsors
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Stanford University
OTHER
University of Tennessee
OTHER
Responsible Party
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Yuru Huang
Assistant Professor
Principal Investigators
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Yuru Huang
Role: PRINCIPAL_INVESTIGATOR
University of Tennessee
Anna Grummon
Role: PRINCIPAL_INVESTIGATOR
Stanford University
Locations
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UTHSC Department of Preventive Medicine
Memphis, Tennessee, United States
Countries
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Central Contacts
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Facility Contacts
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Yuru Huang, PhD
Role: primary
Other Identifiers
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25-10909-NHSR
Identifier Type: -
Identifier Source: org_study_id