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Impacts of Warning Labels on Ultra-Processed Foods

Impacts of Warning Labels on Ultra-Processed Foods

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06296355
Enrollment
4000
Registered
2024-03-06
Start date
2024-08-09
Completion date
2024-09-11
Last updated
2024-10-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diet, Healthy, Health Behavior

Keywords

front-of-package labels, ultra-processed food, food and beverage purchases

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.

Detailed description

On the study platform (Qualtrics), participants will be randomly assigned to 1 of 3 arms with equal probability: a UPF health warning label, a UPF identity label, or a barcode control label. Participants will view four products (a fruit-flavored drink, pretzels, a yogurt, and a breakfast cereal) displayed in random order, each with a label displayed on the front of package according to the participants' study arm. Participants will complete a 13-item online survey to assess each product as to a) whether the product is ultra-processed; b) perceptions of healthfulness; c) intentions to purchase the product.

Interventions

BEHAVIORALHealth Warning Label

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.

BEHAVIORALIdentity Warning Label

Message displayed on warning label is: WARNING: Ultra-processed food.

Barcode is displayed.

Sponsors

Robert Wood Johnson Foundation
CollaboratorOTHER
University of North Carolina, Chapel Hill
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Identifying as Latino or Hispanic * Ages 18-55 years old * Currently resides in the United States

Exclusion criteria

* Not identifying as Latino or Hispanic * Less than 18 or greater than 55 years old * Not residing in the United States

Design outcomes

Primary

MeasureTime frameDescription
Identification of a product as ultra-processedImmediately after exposure to intervention, assessed during 1-time online study visit.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.

Secondary

MeasureTime frameDescription
Perceived product healthfulness of ultra-processed productsImmediately after exposure to intervention, assessed during 1-time online study visit.Measured with the question, How good or bad for your health would it be to consume this product every day? Likert responses are on a 1 to 5 scale, from Very bad (coded as 1) to Very good (coded as 5), with higher scores representing a higher perceived healthfulness.
Intentions to purchase ultra-processed productsImmediately after exposure to intervention, assessed during 1-time online study visit.Measured with the question, How likely would you be to purchase this product in the next week, if it were available? Likert responses are on a 1 to 5 scale, from Not at all likely (coded as 1) to Extremely likely (coded as 5), with higher scores representing a higher intention to purchase ultra-processed products.
Perceived message effectivenessImmediately after exposure to intervention, assessed during 1-time online study visit.Measured with the question, How much does this message discourage you from wanting to consume an ultra-processed food or drink? Likert responses are on a 1 to 5 scale, from Not at all (coded as 1) to Very much (coded as 5), with higher scores representing a higher perceived message effectiveness.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026