Objective understanding of front of pack warning labels among Mexican children of public elementary schools. A randomized experiment

Autor: Alejandra Contreras-Manzano, Alejandra Jáuregui, Jorge Vargas-Meza, Claudia Nieto, Adriana Granich-Armenta, María de Lourdes Alemán Escobar, Armando G.-Olvera, Carlos Cruz-Casarrubias, Ana Munguía, Simón Barquera
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Nutrition Journal, Vol 21, Iss 1, Pp 1-14 (2022)
Druh dokumentu: article
ISSN: 1475-2891
DOI: 10.1186/s12937-022-00791-z
Popis: Abstract Background Warning Labels (WL) highlight excessive amounts of critical nutrients in order to discourage consumption of unhealthful packaged food products. This study aimed to evaluate among Mexican school children, the objective understanding of traditional and numeric WL (aimed at small products) considered by the Mexican regulation, and whether cartoon characters influenced the understanding of WL. We also tested some communication strategies to facilitate the correct use of the WL. Methods We carried out a randomized experiment in July 2019 in public elementary schools from Morelos, Mexico. Participants aged 6–13 years, were randomly assigned to one of four groups: 1) Nutrient Facts Panel (NF) (n = 120), 2) Nutrient Facts Panel with cartoon characters (NF + C) (n = 83), considered the control groups, 3) Warning Labels (WL) (n = 109), and 4) Warning Labels with cartoon characters (WL + C) (n = 96). After allocation, children assigned to both WL groups (WL or WL + C), were randomly required to watch two posters simultaneously or a video explaining how to correctly interpret WLs. Logistic regression models adjusted by sex, age and cluster (school) were fitted. Results The percentage of children correctly choosing the healthiest or the unhealthiest option was higher for WL groups (56.8, 95%CI; 40.8–72.8) compared to NF groups (24.3, 95%CI; 20.4–28.3, p
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