Browsing by Author "Caballero Vivanco, Sara"

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    Eating contexts determine the efficacy of nutrient warning labels to promote healthy food choices
    (Frontiers Media S.A., 2023) Caballero Vivanco, Sara; Moenne Vargas, Cristóbal Matías; Delgado Bravo, Mauricio Antonio; Luarte Rodríguez, Luis Nicolás; Jiménez, Yanireth; Galgani Fuentes, José Eduardo; Perez Leighton, Claudio
    Introduction: Unhealthy food choices increase the risk of obesity and its co-morbidities. Nutrition labels are a public health policy that aims to drive individuals toward healthier food choices. Chile has been an example of this policy, where mandatory nutrient warning labels (NWL) identify processed foods high in calories and critical nutrients. Eating contexts influence individual food choices, but whether eating contexts also influence how NWL alter the decision process and selection during food choice is unknown. Methods: In an online mouse-tracking study, participants prompted to health, typical, or unrestricted eating contexts were instructed to choose between pairs of foods in the presence or absence of NWL. Conflict during choices was analyzed using mouse paths and reaction times. Results: NWL increased conflict during unhealthy food choices and reduced conflict during healthy choices in all contexts. However, the probability that NWL reversed an unhealthy choice was 80% in a healthy, 37% in a typical, and 19% in an unrestricted context. A drift-diffusion model analysis showed the effects of NWL on choice were associated with an increased bias toward healthier foods in the healthy and typical but not in the unrestricted context. Discussion: These data suggest that the efficacy of NWL to drive healthy food choices increases in a healthy eating context, whereas NWL are less effective in typical or unrestricted eating contexts.
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    Influencia del contexto e información nutricional en la elección entre alimentos saludables y no saludables
    (2022) Caballero Vivanco, Sara; Pérez Leighton, Claudio; Pontificia Universidad Católica de Chile. Escuela de Medicina
    Las personas se ven enfrentadas a un conflicto al tener que elegir entre alimentos palatables no saludables y saludables no tan sabrosos, pero no es claro como el contexto de elección y la información nutricional modulan este conflicto. En esta investigación se realizó un estudio online donde los participantes tuvieron que elegir entre imágenes de alimentos con y sin sellos en 3 contextos, entendiendo contexto como la intención de la persona al elegir el alimento. Estos contextos eran: salud (elegir alimentos que comerían para mantenerse sano), deseo (elegir alimentos que comerían si nada los detuviera) y típico (elegir alimentos que comerían en su vida diaria). Se encontró que el contexto es el factor que más influye en la efectividad de los sellos. Los sellos disminuyen el conflicto en elegir alimentos sin sellos frente a alimentos con sellos en todos los contextos, pero sólo en el contexto de salud los sellos aumentan el conflicto al elegir el alimento no saludable.