EXPRESS: How Socioeconomic Status Shapes Food Preferences and Perceptions

This paper assesses the extent to which consumers from the opposite poles of the socioeconomic distribution weigh three critical food attributes–healthiness, fillingness, and taste–, how they perceive the associations among them, and how differences in weights and associations influence food preferences. The results of a series of eight pre-registered studies in a highly unequal socioeconomic environment (Rio de Janeiro, Brazil) show that low (vs. high) socioeconomic status consumers are more likely to (a) choose unhealthy items even when supply-side factors (e.g., affordability and accessibility) are controlled by design, (b) trade healthiness for fillingness (but not taste), and (c) display stronger negative associations between the attributes (healthy = less filling; healthy = less tasty). These findings highlight the importance of a deeper understanding of the psychological differences in food preferences and perceptions and the use of such insights to design interventions aimed at mitigating nutritional inequality. In line with this rationale, the final set of studies shows that, albeit not being a trivial task, it is possible to increase healthy food choices among the disadvantaged by enhancing the fillingness of the healthy options available. Managerial and policy implications are discussed.