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NSS Grocery Store Brazil
Effects of a Non-sugar Sweetener Label on Parents' Selection of Foods and Beverages in Brazil: a Randomized Clinical Trial.
Who can join
Ages 20 and older · All sexes · Healthy volunteers welcome
Full eligibility criteria
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.
About the study
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.
What is being tested
- Experimental : Mexico-based NSS FOPL (other)
- Experimental : Brazil-based NSS FOPL (other)
Sponsor: George Washington University · Participants: 1,068 · Started: Feb 15, 2026
Contact the study team
- Allison C Sylvetsky, PhD · Phone: +1 202-994-9412
Official record on ClinicalTrials.gov — NCT07249008
Locations in the U.S.
| District of Columbia | Milken Institute School of Public Health, Washington D.C. |
From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.