Testing "Ultraprocessed" Front-of-package Label Among Brazilian Consumers

University of North Carolina (UNC)

Status: Completed

Conditions: Dietary Exposure

Treatments: Behavioral: Nutrient and ultraprocessed warning labels; Behavioral: Nutrient warning labels

Study type: Interventional

Funder types: Other

Identifiers

NCT05842460

23-0151

Details and patient eligibility

About

The goal of this experiment is to test the effects an "ultraprocessed" warning label on foods and beverages among Brazilian consumers. The main questions it aims to answer are:

• Do "ultraprocessed" warnings affect Brazilian consumers' intention to purchase products?
• Do "ultraprocessed" warnings affect Brazilian consumers' product perceptions?

Participants will see images of four products carrying either nutrient warning labels (which are currently mandatory in Brazil) or nutrient warning labels alongside an experimental warning label informing that the product is ultraprocessed. Participants will then answer survey questions about each product. Researchers will compare responses between both arms to determine if the "ultraprocessed" warning significantly changes the effect of nutrient warnings.

Enrollment: 1,007 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• 18 years or older,
• residing in Brazil,
• responsible for at least 50% of the household's grocery purchases.

Exclusion criteria

• involvement in any pre-testing.

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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1,007 participants in 2 patient groups

Nutrient warnings

Active Comparator group

Description:

Individuals in this trial arm will see images of products carrying nutrient warnings that are currently included in Brazil's front-of-package labeling scheme.

Treatment:

Behavioral: Nutrient warning labels

Nutrient and ultraprocessed warnings

Experimental group

Description:

Individuals in this trial arm will see images of products carrying nutrient warnings that are currently included in Brazil's front-of-package labeling scheme and an experimental warning stating that the product is ultraprocessed.

Treatment:

Behavioral: Nutrient and ultraprocessed warning labels