Nutrition-related diseases have become a major public concern, due to the enormous economic costs and burden on human well-being. Compared to the numerous unsuccessful efforts made by policy makers to improve the healthiness of food choices (as tax interventions and education campaigns), an alternative approach that appears potentially promising refers to behavioural economics theory. In this context, the research project aims at identifying efficient nudging techniques able to improve the food choices of vulnerable consumers. More specifically, the project implements laboratory experimental economics techniques and randomized controlled trials to analyse the effect of diverse interventions on different vulnerable targets.