Recruiting

NSS Front-of-Package Labels

Sponsor:

George Washington University

Code:

NCT07249008

Conditions

Control Group

Mexico-based NSS FOPL

Brazil-based NSS FOPL

Eligibility Criteria

Sex: All

Age: 20+

Healthy Volunteers: Accepted

Interventions

Experimental : Mexico-based NSS FOPL

Experimental : Brazil-based NSS FOPL

Study Details

Brief summary:

The purpose of this study is to assess the impact of non-sugar sweeteners (NSS) front-of-package labels (FOPL) on Brazilian parents' food and beverage selections for their children. The study includes three arms: 1. no NSS FOPL control group, 2. a group exposed to a NSS FOPL modeled after the Mexican warning label for NSS, and 3. a group exposed to a NSS FOPL using the magnifying glass symbol currently implemented in Brazil for nutrients of public health concern. Participants will be instructed to select products for their child, including one yogurt, three beverages (for breakfast, lunch, and dinner), one granola, and one cereal bar.

Conditions

Control Group

Mexico-based NSS FOPL

Brazil-based NSS FOPL

Study ID

NCT07249008

Start date

Feb 15, 2026

Status verified date

Apr, 2026

Completion date

Jun 30, 2026

Anticipated

Primary completion date

Jun 30, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 20+

Healthy Volunteers: Accepted

Eligible participants include:

  • Adults aged 20 years or older,
  • Living in Brazil
  • Parents or guardians of children between 2 and 12 years old
  • Primarily responsible for the household grocery shopping (more than 50%)
  • Can read and understand Portuguese

Recruitment will occur nationwide through an online panel, with quotas for education, race, and geographic distribution to approximate the national profile.

Individuals will be excluded if

  • Not a parent or guardian of a child aged 2-12 years
  • Younger than 20 years
  • Not primarily responsible for more than half of the household grocery shopping
  • Unable to read or understand Portuguese
  • Do not provide informed consent.

Study Design

Enrollment

1068 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Other

Interventions and Outcome Measures

Arms

no intervention: Control

Participants view the online store without any non-sugar sweetener front-of-package label

experimental: Mexico-based NSS FOPL

Participants view the online store with the Mexican-style non-sugar sweetener front-of-package label on eligible products

experimental: Brazil-based NSS FOPL

Participants view the online store with the magnifying glass non-sugar sweetener front-of-package label like the one used in Brazil

Interventions

Experimental : Mexico-based NSS FOPL

Participants view the online store with the Mexican-style non-sugar sweetener front-of-package label on eligible products

Experimental : Brazil-based NSS FOPL

Participants view the online store with the magnifying glass non-sugar sweetener front-of-package label like the one used in Brazil

Primary outcome measure

  • Percentage of products selected that are unsweetened or low in added sugars [ Time Frame: Day 1 ]

Central Contacts and Locations

Central contacts

Allison C Sylvetsky, PhD

+1 202-994-9412asylvets@email.gwu.edu

Mariana Fagundes Grilo, MHP

marianafg@gwu.edu

Locations

Milken Institute School of Public Health

Recruiting

Washington D.C., District of Columbia, United States, 20037

Contacts

Allison X Sylvetsky, PI

202-994-9412asylvets@email.gwu.edu

More Information

Sponsor

George Washington University

Last update posted

Apr 15, 2026

Last verified

Apr, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by George Washington University on 2026-04-15.