Leila Guarnieri

Ms. Leila Guarnieri


Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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28 June 2019 in Nutrients
Verified
Journal Article
Open access
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LALorena Andrea Allemandi
Lorena Andrea Allemandi
MTMaria Victoria Tiscornia
Maria Victoria Tiscornia
LGLeila Guarnieri
Leila Guarnieri
LCLuciana Castronuovo
Luciana Castronuovo
EMEnrique Martins
Enrique Martins
Sodium intake in Argentina has been estimated to be at least double the dose of 2000 mg/day recommended by WHO, mostly coming from processed foods. Argentina is one of the few countries in the world that have regulated sodium content in certain food products. This study presents an assessment of sodium content in a selection of food groups and categories as reported in the nutrient information panels. We surveyed 3674 food products, and the sodium content of 864 and 1375 of them was compared to the maximum levels according to the Argentinean law and the regional targets, respectively. All food categories presented high variability of sodium content. Over 90% of the products included in the national sodium reduction law were found to be compliant. Food groups with high median sodium, such as condiments, sauces and spreads, and fish and fish products, are not included in the national law. In turn, comparisons with the lower regional targets indicated that almost 50% of the products analyzed had sodium contents above the recommended values. This evidence suggests that enhancing sodium reduction in processed foods may be a necessity for public health objectives and it is also technically feasible in Argentina.

26 September 2022 in Revista Panamericana de Salud Pública
Verified
Journal Article
Open access
PDF file
LCLuciana Castronuovo
Luciana Castronuovo
MTMaria Victoria Tiscornia
Maria Victoria Tiscornia
LGLeila Guarnieri
Leila Guarnieri
EMEnrique Martins
Enrique Martins
FSFabio da Silva
Fabio da Silva
LALorena Andrea Allemandi
Lorena Andrea Allemandi
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<0.001), regardless of the participants’ gender, age, and level of education. NS was inefficacious in reducing product healthfulness perception, while MTL had significantly increased how healthful the product was perceived (p<0.001). Nutrient claims increased purchase intention and perception of healthfulness, thus reducing the effectiveness of front-of-package labels (p<0.001). Conclusions. In line with growing evidence, our findings support that WS perform better than NS and MTL in reducing purchase intention and healthfulness perception of products with excessive amounts of critical nutrients associated with the greatest burden of diseases. Front-of-package WS are expected to facilitate the population in Argentina to make healthier decisions.

16 November 2021 in Nutrients
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Journal Article
Open access
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Adriana Blanco-MetzlerAdriana Blanco-Metzler
Adriana Blanco-Metzler
JVJaritza Vega-Solano
Jaritza Vega-Solano
BFBeatriz Franco-Arellano
Beatriz Franco-Arellano
LALorena Allemandi
Lorena Allemandi
RLRodrigo Octavio Burgos Larroza
Rodrigo Octavio Burgos Larroza
JAJoanne Arcand
Joanne Arcand
In 2015, the Pan American Health Organization (PAHO) published sodium targets for packaged foods, which included two distinct levels: one “regional” and one “lower” target. Changes to the sodium content of the food supply in Latin American Countries (LAC) has not been evaluated. A repeated cross-sectional study used food label data from 2015 (n = 3859) and 2018 (n = 5312) to determine changes in the proportion of packaged foods meeting the PAHO sodium targets and the distribution in the sodium content of foods in four LAC (Argentina, Costa Rica, Paraguay, Peru). Foods were classified into the 18 food categories in the PAHO targets. The proportion of foods meeting the regional targets increased from 82.9% to 89.3% between 2015 and 2018 (p < 0.001). Overall, 44.4% of categories had significant decreases in mean sodium content. Categories with a higher proportion of foods meeting the regional and lower targets in 2018 compared to 2015 (p < 0.05) were breaded meat and poultry, wet and dry soups, snacks, cakes, bread products, flavored cookies and crackers, and dry pasta and noodles. While positive progress has been made in reducing the sodium content of foods in LAC, sodium intakes in the region remain high. More stringent targets are required to support sodium reduction in LAC.

20 December 2021 in BMC Research Notes
Verified
Journal Article
Open access
PDF file
LRLucila Rozas
Lucila Rozas
LCLuciana Castronuovo
Luciana Castronuovo
PBPeter Busse
Peter Busse
SMSophia Mus
Sophia Mus
JBJoaquín Barnoya
Joaquín Barnoya
LGLeila Guarnieri
Leila Guarnieri
Objectives: During the COVID-19 pandemic, most countries implemented lockdowns that motivated changes in the dietary patterns, physical activity, and body mass index (BMI) of consumers worldwide, as well as the emergence of new food marketing strategies in social media. We sought to design and validate a methodology for monitoring and evaluating the Facebook marketing strategies of multinational fast-food chains in response to the COVID-19 pandemic. Data description: We developed three datasets. First, a dataset with the Uniform Resource Locators (URLs) of 1015 Facebook posts of five fast-food chains present in Argentina, Bolivia, Guatemala, and Peru. Second, a dataset of 106 content-analyzed posts we used in a pilot to determine intercoder reliability using statistical tests. Third, a dataset of a final sample of the 1015 content-analyzed posts that we used to determine the variables most frequently used. Following a mixed-methods approach, we developed 29 variables that recorded general information, as well as the marketing strategies we identified in the posts, including 14 COVID-19 specific variables. These data should help to monitor the social media marketing strategies that fast-food chains have introduced during the COVID-19 lockdowns, thus providing initial evidence about how they could be contributing to an unhealthy food environment.

17 February 2025 in Revista Peruana de Medicina Experimental Y Salud Pública
Verified
Journal Article
Open access
PDF file
LGLeila Guarnieri
Leila Guarnieri
LPLucas Perelli
Lucas Perelli
MCMarcos Clausen
Marcos Clausen
GGGermán Guaresti
Germán Guaresti
EEEspinola Espinola
Espinola Espinola
AAAndrea Alacaraz
Andrea Alacaraz
Objetivos. Sintetizar la evidencia sobre el impacto de la implementación de la prohibición de publicidad, promoción y patrocinio (PPP) de bebidas azucaradas (BA) en términos de disminución de consumo, exposición publicitaria y desenlaces clínicos relevantes. Materiales y métodos. Revisión sistemática de estudios publicados entre 2001-2021 en las bases de datos PubMed, Embase, Global Health, CINAHL y LILACS escritos en inglés, portugués o español. Se incluyeronestudios experimentales, observacionales y modelos económicos. Se evaluó el riesgo de sesgo mediante RoB2, Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies, Quality Assessment Tool for Before-After (Pre-Post) Studies With No Control Group y Consolidated Health Economic Evaluation Reporting Standards 2022. Se realizó una síntesis descriptiva de los estudios. Resultados. Se seleccionaron 11 de 1146 estudios identificados. Debido a la heterogeneidad en los desenlaces no fue posible realizar un meta-análisis. Las intervenciones incluidas correspondieron a una política integral; restricciones de publicidad televisiva, de promociones, en punto de venta y en escuelas. Se hallaron cambios en desenlaces clínicos (obesidad, enfermedad cardiovascular, diabetes, cáncer), de índole económica (compra, venta, costo-efectividad, otros desenlaces económicos), en exposición y en consumo. La mayoría de las medidas de efecto evaluadas registraron disminuciones a partir de las intervenciones. Aún hacen falta más estudios sobre políticas efectivamente implementadas. Los resultados de los trabajos incluidos deben ser interpretados contemplando sus limitaciones metodológicas. Conclusiones. Las políticas de restricción de la PPP de las BA pueden resultar efectivas, sobre todo para disminuir su consumo en niños, niñas y adolescentes, impactando positivamente en su salud.

16 October 2018 in Salud Colectiva
Verified
Journal Article
Open access
LALorena Andrea Allemandi
Lorena Andrea Allemandi
MTMaria Victoria Tiscornia
Maria Victoria Tiscornia
LCLuciana Castronuovo
Luciana Castronuovo
LGLeila Guarnieri
Leila Guarnieri
Salud Colectiva | Revista científica de acceso abierto | Instituto de Salud Colectiva, Universidad Nacional de Lanús