The United States is viewed by the world as a country with plenty of food, yet not all households in America are food secure, meaning access at all times to enough food for an active, healthy life. A proportion of the population experiences food insecurity at some time in a given year because of food deprivation and lack of access to food due to economic resource constraints. Still, food insecurity in the United States is not of the same intensity as in some developing countries. Since 1995 the U.S. Department of Agriculture (USDA) has annually published statistics on the extent of food insecurity and food insecurity with hunger in U.S. households. These estimates are based on a survey measure developed by the U.S. Food Security Measurement Project, an ongoing collaboration among federal agencies, academic researchers, and private organizations. USDA requested the Committee on National Statistics of the National Academies to convene a panel of experts to undertake a two-year study in two phases to review at this 10-year mark the concepts and methodology for measuring food insecurity and hunger and the uses of the measure. In Phase 2 of the study the panel was to consider in more depth the issues raised in Phase 1 relating to the concepts and methods used to measure food security and make recommendations as appropriate. The Committee on National Statistics appointed a panel of 10 experts to examine the above issues. In order to provide timely guidance to USDA, the panel issued an interim Phase 1 report, Measuring Food Insecurity and Hunger: Phase 1 Report. That report presented the panel's preliminary assessments of the food security concepts and definitions; the appropriateness of identifying hunger as a severe range of food insecurity in such a survey-based measurement method; questions for measuring these concepts; and the appropriateness of a household survey for regularly monitoring food security in the U.S. population. It provided interim guidance for the continued production of the food security estimates. This final report primarily focuses on the Phase 2 charge. The major findings and conclusions based on the panel's review and deliberations are summarized.

Eighty-five percent of American households were food secure throughout the entire year in 2008, meaning that they had access at all times to enough food for an active, healthy life for all household members. The remaining households (14.6 percent) were food insecure at least some time during the year, including 5.7 percent with very low food security ¿ meaning that the food intake of one or more household members was reduced and their eating patterns were disrupted at times during the year because the household lacked money and other resources for food. Prevalence rates of food insecurity and very low food security were the highest recorded since 1995, when the first national food security survey was conducted. Charts and tables.

89% of Amer. households were food secure throughout 2006, meaning that they had access at all times to enough food for a healthy life for all household members. The remaining households (11%) were food insecure at least some time during the year. About 1/3 of food insecure households (4% of all U.S. households) had very low food security -- meaning that the food intake of one or more adults was reduced & their eating patterns were disrupted because the household lacked money for food. The typical food-secure household spent 31% more on food than the typical food-insecure household of the same size. Over half of all food-insecure households participated in one or more of the Fed. food & nutrition assistance programs. Tables & graphs.

The United States is viewed by the world as a country with plenty of food, yet not all households in America are food secure, meaning access at all times to enough food for an active, healthy life. A proportion of the population experiences food insecurity at some time in a given year because of food deprivation and lack of access to food due to economic resource constraints. Still, food insecurity in the United States is not of the same intensity as in some developing countries. Since 1995 the U.S. Department of Agriculture (USDA) has annually published statistics on the extent of food insecurity and food insecurity with hunger in U.S. households. These estimates are based on a survey measure developed by the U.S. Food Security Measurement Project, an ongoing collaboration among federal agencies, academic researchers, and private organizations. USDA requested the Committee on National Statistics of the National Academies to convene a panel of experts to undertake a two-year study in two phases to review at this 10-year mark the concepts and methodology for measuring food insecurity and hunger and the uses of the measure. In Phase 2 of the study the panel was to consider in more depth the issues raised in Phase 1 relating to the concepts and methods used to measure food security and make recommendations as appropriate. The Committee on National Statistics appointed a panel of 10 experts to examine the above issues. In order to provide timely guidance to USDA, the panel issued an interim Phase 1 report, Measuring Food Insecurity and Hunger: Phase 1 Report. That report presented the panel's preliminary assessments of the food security concepts and definitions; the appropriateness of identifying hunger as a severe range of food insecurity in such a survey-based measurement method; questions for measuring these concepts; and the appropriateness of a household survey for regularly monitoring food security in the U.S. population. It provided interim guidance for the continued production of the food security estimates. This final report primarily focuses on the Phase 2 charge. The major findings and conclusions based on the panel's review and deliberations are summarized.

The time has come to initiate a new program of research on the Supplemental Nutrition Program for Women, Infants, and Children (commonly referred to as WIC). WIC is the third largest food assistance program administered by the U.S. Department of Agriculture (USDA). The program's scope is large, serving approximately 9.3 million low-income women, infants, and children at nutritional risk. Through federal grants to states, participants receive three types of benefits: 1) a supplemental food package tailored to specific age groups for infants and children; 2) nutrition education, including breastfeeding support; and 3) referrals to health services and social services. To cover program costs for fiscal year (FY) 2010, Congress appropriated $7.252 billion. Congress also appropriated $15 million for research related to the program for FY 2010. The timing of the funding for WIC research is propitious. In October 2009, USDA issued regulations that made substantial revisions to the WIC food package. These revisions are the first major change in the food package since the program's inception in 1972. Over the intervening years WIC has expanded greatly, Medicaid coverage has increased, large changes have occurred in the racial and ethnic backgrounds and socioeconomic status of WIC participants as well as in public health services, and obesity rates have increased substantially among the general population. To guide its planning for the use of the $15 million allocated for WIC research, the Food and Nutrition Service of USDA asked the Institute of Medicine to conduct a two-day public workshop on emerging research needs for WIC. As requested, the workshop included presentations and discussions to illuminate issues related to future WIC research issues, methodological challenges, and solutions. The workshop also planned for a program of research to determine the effects of WIC on maternal and child health outcomes.