Search Conferences

Type in any word, words or author name. This searchs through the abstract title, keywords and abstract text and authors. You may search all conferences or just select one conference.

 All Conferences
 EMAC 2019 Annual Conference
 EMAC 2020 Annual Conference
 EMAC 2020 Regional Conference
 EMAC 2021 Annual Conference
 EMAC 2021 Regional Conference
 EMAC 2022 Annual
 EMAC 2022 Regional Conference
 EMAC 2023 Annual
 EMAC 2023 Regional Conference

EMAC 2022 Annual

Do green traffic-light labels signal healthy, tasty, and filling? How traffic-light labels impact food perception and food choice in self-service canteens

Published: May 24, 2022


Lisa-Marie Merkl, University of Bayreuth; Larissa Diekmann, University of Bayreuth; Claas Christian Germelmann, University of Bayreuth


Governments have sought to help consumers make healthier food choices, and increasingly suggest manufacturers to use traffic-light labels (TLLs) on food products. In the context of a self-service canteen, we investigate how a TLL (“Nutri-Score”) on prepared dishes influences food perceptions (healthiness, taste, and satiety) and food choice. An online experiment shows that a green TLL can positively influence perceived healthiness, which positively influences perceived taste, and that this, in turn, positively affects perceived satiety. However, we find that a red TLL does not influence these dimensions of food perceptions. Further, the use of the Nutri-Score does not significantly increase the choice of green dishes but rather decreases the choice of red dishes overall, though surprisingly not for people who chose at least one unhealthy product, which represents the group targeted by the TLL. The underlying mechanisms of a TLL could partly explain the failure of this intervention.