Ultraprocessed Foods in Colombia

Summary

The study seeks to examine how characters on packaging and warning labels affect purchase intentions and risk perception among children aged 12 to 17 in Colombia and, examine whether characters' presence weakens or reduces the perceived message effectiveness of the warning labels' impact. This will be a 2x2 between-subjects experiment manipulating presence or absence of characters and presence or absence of warning labels. Participants will be randomly assigned to 1 of 4 conditions in an online survey programmed in Qualtrics.

Conditions

• Obesity

Interventions

BEHAVIORAL

Warning label

Participants will view images of three products containing octagonal warning labels.

BEHAVIORAL

Barcode control label

Participants will view images of three products containing Barcode control label.

BEHAVIORAL

Character

Participants will view images of three products containing characters.

BEHAVIORAL

Without character

Participants will view images of three products without characters.

Sponsors & Collaborators

• The Bloomberg Family Foundation, Inc.

  collaborator OTHER

• Pontificia Universidad Javeriana

  collaborator OTHER

• University of North Carolina, Chapel Hill

  lead OTHER

Principal Investigators

• Maria Parra-Murillo · University of North Carolina, Chapel Hill

• Marissa Hall, PhD · University of North Carolina, Chapel Hill

Study Design

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

NONE

Model

FACTORIAL

Eligibility

Min Age

12 Years

Max Age

17 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2026-05-01

Primary Completion

2026-09-30

Completion

2026-09-30

Countries

• Colombia

Study Locations