Efficacy of different front-of-package labeling systems in changing purchase intention and product healthfulness perception for food products in Argentina

Autor: Luciana Castronuovo, Maria Victoria Tiscornia, Leila Guarnieri, Enrique Martins, Fabio S Gomes, Lorena Allemandi
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Rok vydání: 2022
Předmět:
Zdroj: Revista Panamericana de Salud Pública, Vol 46, Iss 137, Pp 1-11 (2022)
Druh dokumentu: article
ISSN: 1020-4989
1680-5348
DOI: 10.26633/RPSP.2022.137
Popis: Objectives. To identify the front-of-package scheme—Multiple Traffic Light (MTL), Nutri-Score (NS), and black octagon Warning System (WS)—most effective in reducing purchase intention and perceived product healthfulness of drinking yogurts, cookies and cheese spreads, and to assess the joint influence of nutrient claims on the effects. Methods. Randomized-controlled experiment. A within-subjects factorial design was used to evaluate the influence of three independent factors on perceived product healthfulness and purchase intention. A total of 704 adults in Argentina were shown three mock-up products and asked to indicate which product they would buy choosing between pairs of products from different categories and to rate product healthfulness on a 7-point Likert scale. Results. The WS was the most effective in reducing purchase intention in drinking yogurts (OR:0.16, 95%CI: 0.09;0.28), cookies (OR:0.10, 95%CI: 0.05;0.18) and cheese spreads (OR:0.10, 95%CI: 0.05;0.18), and the perception of healthfulness (WS Mean score 3,63 vs No label 4,24, p
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