The dramatic increase in the prevalence of overweight and obesity among adults in the United States during the past two decades is related to increased cardiovascular disease, hypertension, dyslipidemia, diabetes, and other chronic diseases. With 63.9% of working-age adults employed, worksites are targets for prevention and intervention programs to control overweight and obesity. Worksite interventions have the potential to reach a large number of individuals in a common and shared environment.