Environmental, social, and economic factors related to the intersection of food security, dietary quality, and obesity: an introduction to a special issue of the Translational Behavioral Medicine journal.

This special issue of Translational Behavioral Medicine solicited papers focusing on the intersection of food security, dietary quality, and obesity. Specifically, the special issue seeks to highlight research that provides actionable takeaways related to policy, systems, and environmental (PSE) approaches for practitioners and policymakers. The purpose of this introduction was to summarize relevant background literature and then briefly introduce topics covered by the articles included in the special issue. There are economic, environmental, and social factors that create systemic barriers that drive persistent poverty in communities and underlay the intersection of food security, dietary quality, and obesity. Although equitable healthful food access is needed, the issue is exceedingly complicated. Understanding and operationalizing effective and efficient PSE approaches is in its infancy. More research is needed to better understand how to appropriately measure determinants of health (and how they relate to the conditions that ultimately promote obesity through food insecurity and compromises to dietary quality), implement deliberate interventions that address the underlying factors, and disseminate that information to policymakers and practitioners in the field. This special issue of Translational Behavioral Medicine includes articles that relay practical findings, measurement methods, and lessons learned related to PSE approaches such as federal food assistance programs (e.g., National School Lunch Program), systems-based interventions (e.g., clinic-community connections), and environmental modifications(e.g., food retail marketing). Although much more practical and action-oriented research is needed in this area, these articles will contribute to the evidence base supporting better future assessment and PSE interventions that address food security, dietary quality, and obesity. © Society of Behavioral Medicine 2019. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.