Limited access to nutritious food and relatively easier access to less nutritious food may be linked to poor diets and, ultimately, to obesity and diet-related diseases. Congress directed the USDA to conduct a one-year study to assess the extent of the problem of limited access, identify characteristics and causes, consider the effects of limited access on local populations, and outline recommendations to address the problem. This new book includes a national-level assessment of access to supermarkets and large grocery stores, analysis of the economic and public health effects of limited access, and a discussion of existing policy interventions.