INTRODUCTION The prevalence of childhood obesity is increasing, and schools are ideal places to support healthy eating and physical activity. In 2000, the Centers for Disease Control and Prevention (CDC) developed the School Health Index, a self-assessment and planning tool that helps schools evaluate and improve physical activity and nutrition programs and policies. Although many state educati...

Objective: Examine whether requiring children to place fruits and vegetables on their lunch trays increases consumption of these items. Design: Observational study that exploits naturally occurring variation between two school districts and a pre-post observational study at schools that changed their lunch policy mid-year. Setting: 15 elementary schools from two school districts, one requiring ...