Universite Paris-Nanterre, UR Clipsyd, Nanterre, France.
Oniris, Site de la Géraudière, Nantes, France.
Appetite. 2022 Nov 1;178:106005. doi: 10.1016/j.appet.2022.106005. Epub 2022 May 9.
The objective of this exploratory study was to examine whether the number of foods offered has an impact on plate waste and meal satisfaction in adolescents' school canteens. The plate waste of 247 French students was estimated during two school lunches, the only variation being the number of starters offered (3 versus 6). Plate waste was assessed by the weight of food left on the tray. Students had to complete a short questionnaire regarding their general satisfaction with the meal. The results indicated that limiting the number of starters provided from 6 to 3 choices led to a decrease of Plate waste (-28.1 g) (p < .0001), and a modest increase in Meal satisfaction (p = .02). They suggest that limiting the number of food choices in school canteens reduces plate waste, while not diminishing satisfaction with the meal.
本探索性研究旨在探讨在学校食堂提供的食物种类数量是否会影响青少年餐盘浪费和用餐满意度。在两次学校午餐中，对 247 名法国学生的餐盘浪费情况进行了评估，唯一的变化是提供的开胃菜数量（3 种与 6 种）。餐盘浪费情况通过托盘上剩余食物的重量来评估。学生们必须完成一份关于他们对这顿饭总体满意度的简短问卷。结果表明，将提供的开胃菜数量从 6 种限制到 3 种选择会导致餐盘浪费减少（-28.1 克）（p<.0001），并且对用餐的满意度略有提高（p=.02）。研究结果表明，在学校食堂限制食物选择的种类数量可以减少餐盘浪费，同时不会降低对用餐的满意度。
