Research Department of Behavioural Science and Health, Institute of Epidemiology & Public Health, 1-19 Torrington Pl, Fitzrovia, University College London, London WC1E 7HB, UK.
Behavioural Insights Team, 4 Matthew Parker Street, London SW1H 9NP, UK.
Nutrients. 2020 Dec 18;12(12):3878. doi: 10.3390/nu12123878.
Online systems that allow employees to pre-order their lunch may help reduce energy intake. We investigated the acceptability of a pre-ordering website for a workplace canteen that prompts customers to swap to lower-energy swaps and the factors influencing swap acceptance. Employees ( = 30) placed a hypothetical lunch order through a pre-ordering website designed for their canteen while thinking aloud. Semi-structured interview questions supported data collection. Data were analysed using thematic analysis. Acceptability was generally high, but potentially context dependent. Practical considerations, such as reminders to pre-order, user-friendliness, provision of images of menu items and energy information while browsing, an ability to reserve pre-ordered meals, and a swift collection service facilitated acceptability. The restrictive timeframe within which orders could be placed, a lack of opportunity to see foods before ordering, and prompts to swap being perceived as threatening autonomy were barriers to acceptability. Swap acceptance was facilitated by the provision of physical activity calorie equivalents (PACE) information, and swap similarity in terms of taste, texture, and expected satiety as well as the perception that alternatives provided meaningful energy savings. Online canteen pre-ordering systems that prompt lower-energy swaps may be an acceptable approach to help reduce energy intake in the workplace.
在线系统允许员工提前预订午餐，可能有助于减少能量摄入。我们研究了一种用于工作场所食堂的预订网站的可接受性，该网站提示顾客更换低能量的选择，并探讨了影响这种更换的接受度的因素。员工（n=30）通过为他们的食堂设计的预订网站，一边进行预订单，一边大声说出自己的想法。使用半结构化的访谈问题来支持数据收集。使用主题分析对数据进行分析。可接受性通常较高，但可能取决于具体情况。一些实际考虑因素，如预订提醒、用户友好性、在浏览时提供菜单项目和能量信息的图片、预订已预订餐食的能力以及快速收集服务，都有助于提高可接受性。可接受性的障碍包括订单只能在有限的时间内提交、在订购前没有机会看到食物，以及被认为是威胁自主权的更换提示。提供身体活动卡路里等效物（PACE）信息、在口味、质地和预期饱腹感方面相似的更换选择以及认为替代品能提供有意义的能量节省，都有助于接受度的提高。提示低能量更换的在线食堂预订系统可能是一种可以接受的方法，可以帮助减少工作场所的能量摄入。
