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.
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