The nature of worksites makes it is an ideal opportunity for obesity control and prevention interventions. The National Institutes of Health has funded 119 grants between 2007 and 2014. Originally presented at the George Washington University and ICF International Research and Evaluation Forum (#GWICF2015), Dr. Charlotte Pratt, Program Director at the National Health, Lung, and Blood Institute (NHLBI), gives an overview of worksite obesity research and the key questions they aim to answer: Do interventions that modify the worksite food and physical activity environments (or combined with individual approaches) control body weight in adults? Will participation in a worksite obesity intervention sustain and maintain weight loss, and reduce cardiovascular disease risk factors in adults? In addition to the slides, you can watch the video for research details and outcomes as well as recommendations for future research: www.icfi.com/ObesityPreventionCharlottePratt