PDJ-CNPq/Embrapa Agroindústria de Alimentos, Av. das Américas, 29501, CEP 23.020-470 Rio de Janeiro/RJ, Brazil.
Sensometrics & Consumer Science, Instituto Polo Tecnológico de Pando, Facultad de Química, Universidad de la República, By Pass de Rutas 8 y 101 s/n, CP 91000 Pando, Canelones, Uruguay; Centro de Investigación Básica en Psicología, Facultad de Psicología, Universidad de la República, Tristán Narvaja 1674, C.P. 11200 Montevideo, Uruguay.
Food Res Int. 2020 Oct;136:109458. doi: 10.1016/j.foodres.2020.109458. Epub 2020 Jun 20.
Front-of-package (FOP) nutrition labelling schemes use different framing to highlight nutrient content and promote healthier food choices. Health logos and nutritional warnings can be positioned on opposite sides of a continuous that goes from highlighting healthful products (gain-frame) to highlight unhealthful products (loss-frame), respectively. The aim of the present work was to evaluate the impact of health logos and nutritional warnings on consumers' choice of products with lower sugar content, and the impact of the two FOP nutrition labelling schemes on consumers' associations with sugar. An online study with 1232 people was carried out. Participants were randomly assigned to three experimental conditions: control (no information), health logos and nutritional warnings. They were presented with a series of three packages of different product categories featuring the corresponding information about sugar content and they had to indicate the product they would buy. After completing the choice tasks, they had to complete a word association task about sugar. Results confirmed that the inclusion of FOP nutrition labelling schemes containing information about sugar content encouraged consumers to select the product with lower sugar content. A larger proportion of participants selected the product with the lowest sugar content when packages featured nutritional warnings compared to when they featured health logos. Results from the word association task showed that nutritional warnings made the negative health effects of sugar more salient on consumers' mind. These results suggest that FOP nutrition labelling schemes based on a loss-frame to sugar content may be more efficient at encouraging healthier food choices than gain-frame schemes.
包装正面（FOP）营养标签方案使用不同的框架来突出营养成分，促进更健康的食物选择。健康标志和营养警告可以分别位于从突出健康产品（增益框架）到突出不健康产品（损失框架）的连续线上的相对两侧。本研究的目的是评估健康标志和营养警告对消费者选择低糖含量产品的影响，以及两种 FOP 营养标签方案对消费者对糖的联想的影响。进行了一项有 1232 人的在线研究。参与者被随机分配到三个实验条件：对照组（无信息）、健康标志和营养警告。他们被展示了一系列三个不同产品类别的包装，上面有关于糖含量的相应信息，他们必须指出他们会购买的产品。完成选择任务后，他们必须完成一个关于糖的词联想任务。结果证实，包含有关糖含量的 FOP 营养标签方案的信息鼓励消费者选择低糖含量的产品。与包装上有健康标志相比，当包装上有营养警告时，更多的参与者选择了含糖量最低的产品。词联想任务的结果表明，营养警告使糖对健康的负面影响在消费者的脑海中更加突出。这些结果表明，基于损失框架的 FOP 营养标签方案可能比增益框架方案更有效地鼓励更健康的食物选择。
