School of Public Health and Health Systems, University of Waterloo, Waterloo, ON, Canada.
Department of Nutritional Sciences, University of Toronto, Toronto, ON, Canada.
Prev Med. 2018 Oct;115:83-89. doi: 10.1016/j.ypmed.2018.08.022. Epub 2018 Aug 23.
The current study explored the influence of three summary indicator front-of-pack (FOP) nutrition labels on consumer perceptions of the healthiness of different beverage products. In 2016, a total of 675 respondents in southwestern Ontario aged 16 and over viewed images of soda, unflavoured milk and chocolate milk displaying one of four FOP label conditions (no FOP label, numeric rating, health star rating (HSR), or simplified traffic light (STL)), and rated the products' healthiness. Participants also indicated their preference for summary indicator versus nutrient-specific FOP labels. Logistic regression models comparing correct responses across label conditions found no differences across label conditions for unflavoured milk or soda. Consumers in the HSR and STL conditions were more likely to correctly perceive a chocolate milk beverage as 'moderately healthy' (p = 0.004, p = 0.016). No differences in responses were identified across sociodemographic groups. Most respondents (93%) indicated that they would like to see a health rating or nutrient-specific information on the front of food products. Results of this study suggest that the influence of FOP labels may vary based on the nutritional quality of food products, and may have the greatest influence on consumer perceptions of 'nutritionally ambiguous' foods. Consumers indicated almost unanimous support for implementing FOP nutrition labelling systems.
本研究探讨了三种汇总型食品标签（front-of-pack，FOP）对消费者对不同饮料产品健康程度认知的影响。2016 年，安大略省西南部共有 675 名年龄在 16 岁及以上的受访者查看了四种 FOP 标签条件（无 FOP 标签、数字评分、健康星级评分（HSR）或简化信号灯（STL））下的苏打水、无风味牛奶和巧克力牛奶图像，并对产品的健康程度进行了评分。参与者还表示了他们对汇总型与营养素特定型 FOP 标签的偏好。比较标签条件下正确回答的逻辑回归模型发现，无风味牛奶或苏打水在标签条件之间没有差异。在 HSR 和 STL 条件下的消费者更有可能正确地将巧克力牛奶饮料视为“中等健康”（p=0.004，p=0.016）。在社会人口统计学群体中没有发现反应差异。大多数受访者（93%）表示，他们希望在食品的正面看到健康评级或营养素特定信息。本研究结果表明，FOP 标签的影响可能取决于食品的营养质量，并且可能对消费者对“营养模糊”食品的认知产生最大影响。消费者表示几乎一致支持实施 FOP 营养标签系统。
