Combining positioning and labelling interventions for healthier and more environmentally sustainable products: A randomised controlled trial in an online experimental supermarket.

ABSTRACT: Population diets need to become healthier and more sustainable to limit their negative effects on health and environment. This study assessed the effect of a positioning intervention, in isolation and in combination with a labelling intervention, on the a) healthiness and b) environmental sustainability of food choices in an experimental online supermarket. Participants (n = 2220) were randomly assigned to one of five trials groups (control; healthier items shown earlier ("health position"); health position & nutri-score labels; environmentally sustainable products shown earlier ("eco position"); eco position & ecolabels) and completed a shopping task in an experimental online supermarket. Linear regressions showed that compared to control, mean scaled nutri-scores of shopping baskets were

SUBMITTER: Jostock C 

PROVIDER: S-EPMC7618743 | biostudies-literature | 2026 Mar

REPOSITORIES: biostudies-literature