Food insecurity is recognized as a major health crisis in the United States. More than 42 million persons were food insecure in 2015, and many negative health outcomes are attributable to food insecurity. In this episode, we talk with University of Illinois Professor Craig Gundersen on the measurement, causes, and consequences of food insecurity. We discuss why solving the issue can be challenging, and why programs like the Supplemental Nutrition Assistance Program (SNAP) can be effective. Finally, we discuss how COVID-19 has affected the fight to end food insecurity.