Identifying healthy food and beverages in food retail store point-of-sale systems: a feasibility and validity study

Alternative methods to the expert-informed process examined in this study should be considered to classify food and beverages in remote food retail point-of-sale systems. The Thumbs Rating provides a valid classification system and would provide an automated means of classification that could be linked to point-of-sale systems. A shift in classification for a small proportion of products, would need to be considered in applying the Thumbs Rating system to remote food retail interventions, or additional criteria overlaying the system could be implemented to meet specific criteria for targeted strategies.