Desempenho e percepção sobre modelos de rotulagem nutricional frontal no Brasil

Abstract

OBJETIVO: Avaliar o desempenho e a percepção de cinco modelos de rotulagem nutricional frontal (RNF) entre consumidores brasileiros. MÉTODOS: Estudo transversal, com aplicação de questionário online a 2.400 indivíduos, alocados de forma aleatória em seis grupos de estudo, sendo um controle e cinco expostos a modelos de RNF (octógono, triângulo, círculo, lupa e semáforo), aplicados a nove alimentos. Foi avaliado o entendimento do conteúdo nutricional, a percepção de saudabilidade, a intenção de compra e a percepção dos consumidores brasileiros sobre os modelos. RESULTADOS: Todos os modelos de RNF aumentaram o entendimento do conteúdo nutricional e reduziram a percepção de saudabilidade e a intenção de compra, quando comparados ao grupo controle (41,3%). Os modelos de RNF de advertência - octógono (62,4%), triângulo (61,9%) e círculo (61,8%) - apresentaram desempenho significativamente superior ao semáforo (55,0%) quanto ao entendimento do conteúdo nutricional. O desempenho do modelo da lupa (59,5%) não diferiu dos outros quatro modelos testados, inclusive do semáforo (55,0%), para o entendimento do conteúdo nutricional. A análise individual dos alimentos sugere melhor desempenho das advertências em relação à lupa e ao semáforo para a percepção de saudabilidade e a intenção de compra. Os consumidores manifestam-se favoráveis à presença da RNF, percebendo-a como confiável para aumentar o entendimento das informações nutricionais. CONCLUSÃO: A RNF deve ser implementada nos rótulos dos alimentos no Brasil, considerando que aumenta o entendimento nutricional, reduz a percepção de saudabilidade e a intenção de compra de alimentos com nutrientes críticos. As advertências apresentaram melhor desempenho quando comparadas aos demais modelos.

Comparison of two front-of-pack nutrition labels for Brazilian consumers using a smartphone app in a real-world grocery store: A pilot randomized controlled study

“…These findings show that the presence of FoPNL favors the better interpretation of the nutritional content of the product, a finding also seen in other studies (9,14,17). An online study carried out in 2021 with 2400 Brazilian participants also indicated that the use of different FoPNL models, including the magnifying glass and the octagon, both increased the understanding of the nutritional content of products, but this studies evaluated the effectiveness of the design only and not the concomitant application of nutritional profile models (26).…”

Effectiveness of Displaying Traffic Light Food Labels on the Front of Food Packages in Japanese University Students: A Randomized Controlled Trial

“…Moreover, the red signal labeling has been shown to potentially reduce unhealthy eating habits and activate the superior medial frontal gyrus and accessory motor area. Additionally, online surveys from other countries that do not have an FOPL have reported the usefulness of applying nutrition la-bels [35]. In the future, it would be useful to conduct an attribution analysis on the impact of TLF labels on Japanese consumers because there are reports that TLF use and nutrition-al knowledge are related to the socioeconomic and educational status of the participants [16].…”

Effects of front-of-package nutrition labelling systems on understanding and purchase intention in Jamaica: results from a multiarm randomised controlled trial

“…Results are also expected to contribute to the evaluation of the effect of graphical design on the effectiveness of warning labels, a topic that has been increasingly receiving more attention in the literature more recently. [33][34][35][36][37][38][39] The hypotheses tested in the study include: (1) OWL, MGG and TFL improve consumers' ability to correctly identify the least harmful product more often; (2) these FOP labelling schemes improve Open access consumers' ability to correctly identify the presence of excessive nutrient content in products more often; (3) and these FOP labelling schemes increase consumers' intention to purchase the least harmful option or none of the options of a series of products, more often. These hypotheses have been tested both against the control condition, and between the FOP labelling schemes, to verify whether there is a scheme that performs differently from the others for each hypothesis.…”

“…The comparisons aimed at assessing the effect of these FOP labelling schemes on objective understanding (correct identification of the least harmful product and correct identification of excessive nutrient content), and intention to purchase of a series of products, in Jamaica. Results are also expected to contribute to the evaluation of the effect of graphical design on the effectiveness of warning labels, a topic that has been increasingly receiving more attention in the literature more recently 33–39. The hypotheses tested in the study include: (1) OWL, MGG and TFL improve consumers’ ability to correctly identify the least harmful product more often; (2) these FOP labelling schemes improve consumers’ ability to correctly identify the presence of excessive nutrient content in products more often; (3) and these FOP labelling schemes increase consumers’ intention to purchase the least harmful option or none of the options of a series of products, more often.…”