A natural experiment by Marjolijn Vos, Viktor L. J. Proesmans, Anneleen Van Kerckhove, Benedicte Deforche, Nathalie Michels,Maartje P. Poelman and Wendy Van Lippevelde https://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-025-04210-y Background Lower socioeconomic status (SES) is linked to diets that do not meet dietary guidelines. The “Dinner is served at 1-2-3 euros” (DS123) supermarket intervention aims to support vulnerable families in cooking more home-made meals