Cluster-Randomized Controlled Trial of a Mobile Produce Market designed to Address Diet and Food Insecurity in Underserved Communities

Background Veggie Van (VV) is a multi-level mobile produce market intervention that increased fruit and vegetable (F&V) consumption in lower-income communities in an efficacy study. The aim of this study was to understand the impact of the VV intervention delivered by multiple community partners on food security and diet-related behaviors. Methods This cluster-randomized trial was conducted in partnership with nine organizations across four states in the United States. Partner organizations selected 33 community sites that reached lower-income individuals with limited access to healthy food. Eligible study participants were age 18+, the primary household shopper, and lived near/frequented the community site; 699 participants were enrolled across all communities. Sites were randomized in pairs to receive the VV intervention (n = 17 sites) or a planning condition (n = 16 sites) for one year. Trial registration This trial was registered at www.clinicaltrials.gov on January 29, 2020 (NCT04246593).