Context: Obesity constitutes a major public health challenge in the United States. Obesogenic environments have increased owing to the consumption of calorie‐dense foods of low nutritional value and the reduction of daily physical activity (e.g., increased portion sizes of meals eaten in and out of the home and fewer physical activity requirements in schools). Policymakers and public health practitioners need to know the best practices and have the competencies to use laws and legal authorities to reverse the obesity epidemic. For instance, statutes and regulations at the federal, state, and local levels of government have been implemented to improve nutritional choices and access to healthy foods, encourage physical activity, and educate consumers about adopting healthy lifestyles. Methods: In an effort to understand the application of laws and legal authorities for obesity prevention and control, in June 2008 the Centers for Disease Control and Prevention convened the National Summit on Legal Preparedness for Obesity Prevention and Control. An outcome of this summit will be the publication of the proceeding's white papers written by eight law and subject‐matter experts with substantive contributions from summit participants, which will identify actionable options that sectors and organizations at various jurisdictional levels can consider adopting. Findings: Law has played a critical role in the control of chronic diseases and the behaviors that lead to them. The use of a systematic legal framework—the use of legislation, regulation, and policy to address the multiple factors that contribute to obesogenic environments—can assist in the development, implementation, and evaluation of a variety of legal approaches for obesity prevention and control. Conclusions: Although public health–focused legal interventions are in an early stage and the direct and indirect impact they may have on the obesity epidemic is not yet understood, efforts such as the summit and white papers should help determine potentially viable legal interventions and assess their impact on population‐level change.

The Centers for Disease Control and Prevention (CDC) has focused its obesity prevention and control efforts on improving population-level health. A recent Institute of Medicine report identified systems that affect population health, to include health care delivery systems, schools, businesses and employers, communities, and governmental public health infrastructure. CDC uses the public health model to engage these systems, and this process coordinates multiple settings, sectors, and jurisdictions to develop an integrated approach to identify, prevent, and control obesity. The public health approach goes beyond medical care to prioritize policy and environmental strategies that can be implemented across jurisdictional levels, in collaboration with traditional and nontraditional partners. The process ultimately produces tools, guidelines, and interventions that can be used to prevent and control obesity. In this manuscript, we provide an overview of the public health perspective on obesity, outline the public health framework for addressing obesity, and discuss the rationale for leveraging law-based efforts as a tool to accomplish the public health mission.

The National Summit on Legal Preparedness for Obesity Prevention and Control was conceived by the Centers for Disease Control and Prevention (CDC) as a strategic conference to review the current status of legal preparedness for obesity prevention and control, identify potential gaps, and develop specific action options for improving the contribution law can make to reduce the health threat posed by obesity. Working with the collaborating partners and planning committe, the host committe planned and modeled after the Summit CDC’s 2007 conference on public health emergency legal preparedness that resulted in the National Action Agenda for Public Health Emergency Legal Preparedness. The summit was a working meeting that offered invited participants a structured opportunity to deliberate about the laws and legal issues that impact obesity prevention and control from a public health perspective.

Weight of the Nation (WON) is a national forum for obesity prevention leaders who are “game changers” — those who are leading the field of innovative obesity prevention practice — to provide opportunities to expand and advance evidence-based and emerging solutions to the epidemic and brainstorm on collaborative efforts to apply these solutions in settings that reach individuals across the lifespan. WON is hosted by the U.S. Department of Health and Human Services (HHS), Centers for Disease Control and Prevention (CDC), National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP), Division of Nutrition, Physical Activity, and Obesity (DNPAO). WON is unique for its conference style which focuses participants on population-level approaches that can be implemented in select settings and sectors and in its use of social media and long-distance training to increase participation and information dissemination.