The United States is among the world's wealthiest countries, yet a substantial number of children live in households where at least one child is food insecure. Research has demonstrated adverse effects of food insecurity on children. Considerable federal resources via SNAP are targeted toward protecting low-income families from food insecurity. Using secondary data and nonexperimental methods, this study finds that SNAP participation has an ameliorative effect on food insecurity among children. This study also finds factors such as parental depressive symptoms, poor parental health, and low social support are associated with an increased risk of food insecurity among children.