论文推荐 | 行为干预能否促进外卖用户选择低盐菜品？

题目：Can behavioural nudges promote reduced-salt dish orders on meal delivery apps?

（行为干预能否促进外卖用户选择低盐菜品？）

作者：Wenyue Li#, Chao Song#, Ying Cui, Yue Ma, Beisi Li, Zhongdan Chen, Paige Snider, Ying Long*, Ailing Liu*, Gauden Galea*

发表刊物：

Public Health

DOI：

https://doi.org/10.1016/j.puhe.2024.12.028

Objectives: This study aimed to evaluate the effectiveness of educational health messages and menu default options on a Meal Delivery App (MDA) in nudging consumers towards reduced-salt options in restaurants of China.Study design: We conducted a nudge-based intervention trial on a DA named ELEME in China.Methods: Along with a control group, five intervention groups were formed utilizing different combinations of the three nudging treatments, including setting up a salt submenu for the “reduced salt” default, a salt submenu for the regular salt” default, and a conventional educational health message on the ordering page. We recruited 903 restaurants from cities across different geographic regions and assigned them to either the control group or one of the five intervention groups. Results: After analyzing 870,942 meal orders, the results showed that the inclusion of a health message on the restaurants’ ordering page was not effective in influencing consumers to choose reduced-salt dishes (P > 0.1). The asalt submenu that explicitly asked for consumers’ preference for “reduced salt” or “regular salt” significantly increased consumers’ likelihood of choosing reduced-salt dishes in the unadjusted model (P