TV advertising and dietary intake in adolescents: a pre- and post- study of Chile’s food marketing policy
Author
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Jensen, Melissa L.
Author
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Dillman Carpentier, Francesca R.
Author
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Adair, Linda
Author
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Corvalán Aguilar, Camila Luz
Author
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Popkin, Barry M.
Author
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Smith Taillie, Lindsey
Admission date
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2021-12-16T17:58:16Z
Available date
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2021-12-16T17:58:16Z
Publication date
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2021
Cita de ítem
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Journal of Behavioral Nutrition and Physical Activity (2021) 18:60
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Identifier
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10.1186/s12966-021-01126-7
Identifier
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https://repositorio.uchile.cl/handle/2250/183262
Abstract
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Background: The first phase of a comprehensive marketing policy was implemented in Chile in 2016. The policy
restricted child-directed marketing of foods and beverages considered high in energy, total sugars, sodium or
saturated fat (“high-in”). The objective of this study was to examine the role of high-in TV food advertising as a
mediator in the association between policy implementation and consumption of high-in foods and beverages
between 2016 and 2017.
Methods: Dietary data were from 24-hour diet recalls collected in 2016 and 2017 in a cohort of 12–14 y children
(n = 721). Television use was assessed concurrently and linked to analyses of food advertisements on broadcast and
paid television to derive individual-level estimates of exposure to high-in food advertising. A multilevel mediation
analysis examined direct and indirect effects of the policy through advertising exposure.
Results: Following the policy implementation, high-in advertising exposure was significantly reduced (p < 0.01).
High-in food intake decreased in adolescents with lower levels, but not higher levels, of high-in advertising at
baseline. We did not find evidence of mediation by changes in high-in ad exposure.
Conclusions: Adolescents’ exposure to high-in TV advertising decreased after the 2016 implementation of the
Chilean Food Labeling and Marketing Law. However, evidence that changes in advertisement mediated dietary
changes was not found. Further research is needed to understand how marketing changes will relate to dietary
changes after full implementation of the law and in the long term.
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Patrocinador
dc.description.sponsorship
Bloomberg Philanthropies, IDRC 108180-001
Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) 1161436
United States Department of Health & Human Services
National Institutes of Health (NIH) - USA T32 HL129969-01A1
Aparece en contenido como:NIH National Research Service Award (Global Cardiometabolic Disease Training Grant)
Population Research Infrastructure Program P2C HD050924
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Lenguage
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en
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Publisher
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BMC
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Type of license
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Attribution-NonCommercial-NoDerivs 3.0 United States