The effect of nudges aligned with the renewed Flemish Food Triangle on the purchase of fresh fruits: An on-campus restaurant experiment

This study examined the effect of nudges, inspired by the recently renewed Flemish Food Triangle, on fruit sales in a Belgian on-campus university restaurant. In this mixed-method real-life experiment, nudges were added weekly over a period of four consecutive weeks: placement of (1) Food Triangle posters in the restaurant, (2) ‘green heart’ icons above the fruit stands, and (3) substitution and (4) social norm messages at the fruit stands....