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 National Research Council's Science and Technology for Sustainability Program hosted two workshops in 2011 addressing the sustainability challenges associated with food security for all. The first workshop, Measuring Food Insecurity and Assessing the Sustainability of Global Food Systems, explored the availability and quality of commonly used indicators for food security and malnutrition; poverty; and natural resources and agricultural productivity. It was organized around the three broad dimensions of sustainable food security: (1) availability, (2) access, and (3) utilization. The workshop reviewed the existing data to encourage action and identify knowledge gaps. The second workshop, Exploring Sustainable Solutions for Increasing Global Food Supplies, focused specifically on assuring the availability of adequate food supplies. How can food production be increased to meet the needs of a population expected to reach over 9 billion by 2050? Workshop objectives included identifying the major challenges and opportunities associated with achieving sustainable food security and identifying needed policy, science, and governance interventions. Workshop participants discussed long term natural resource constraints, specifically water, land and forests, soils, biodiversity and fisheries. They also examined the role of knowledge, technology, modern production practices, and infrastructure in supporting expanded agricultural production and the significant risks to future productivity posed by climate change. This is a report of two workshops.

New evidence this year corroborates the rise in world hunger observed in this report last year, sending a warning that more action is needed if we aspire to end world hunger and malnutrition in all its forms by 2030. Updated estimates show the number of people who suffer from hunger has been growing over the past three years, returning to prevailing levels from almost a decade ago. Although progress continues to be made in reducing child stunting, over 22 percent of children under five years of age are still affected. Other forms of malnutrition are also growing: adult obesity continues to increase in countries irrespective of their income levels, and many countries are coping with multiple forms of malnutrition at the same time – overweight and obesity, as well as anaemia in women, and child stunting and wasting.

At some point during 2009, more than 17 million households in the United States had difficulty providing enough food for all their members because of a lack of resources. In more than one-third of these households, the food intake of some household members was reduced and normal eating patterns were disrupted due to limited resources. The Workshop on Understanding the Relationship Between Food Insecurity and Obesity was held to explore the biological, economic, psychosocial, and other factors that may influence the relationship between food insecurity, overweight, and obesity in the United States. Hunger and Obesity examines current concepts and research findings in the field. The report identifies information gaps, proposes alternative approaches to analyzing data, recommends new data that should be collected, and addresses the limitations of the available research.

Updates for many countries have made it possible to estimate hunger in the world with greater accuracy this year. In particular, newly accessible data enabled the revision of the entire series of undernourishment estimates for China back to 2000, resulting in a substantial downward shift of the series of the number of undernourished in the world. Nevertheless, the revision confirms the trend reported in past editions: the number of people affected by hunger globally has been slowly on the rise since 2014. The report also shows that the burden of malnutrition in all its forms continues to be a challenge. There has been some progress for child stunting, low birthweight and exclusive breastfeeding, but at a pace that is still too slow. Childhood overweight is not improving and adult obesity is on the rise in all regions. The report complements the usual assessment of food security and nutrition with projections of what the world may look like in 2030, if trends of the last decade continue. Projections show that the world is not on track to achieve Zero Hunger by 2030 and, despite some progress, most indicators are also not on track to meet global nutrition targets. The food security and nutritional status of the most vulnerable population groups is likely to deteriorate further due to the health and socio economic impacts of the COVID-19 pandemic. The report puts a spotlight on diet quality as a critical link between food security and nutrition. Meeting SDG 2 targets will only be possible if people have enough food to eat and if what they are eating is nutritious and affordable. The report also introduces new analysis of the cost and affordability of healthy diets around the world, by region and in different development contexts. It presents valuations of the health and climate-change costs associated with current food consumption patterns, as well as the potential cost savings if food consumption patterns were to shift towards healthy diets that include sustainability considerations. The report then concludes with a discussion of the policies and strategies to transform food systems to ensure affordable healthy diets, as part of the required efforts to end both hunger and all forms of malnutrition.

How to focus anti-hunger efforts not on charity but on the root causes of food insecurity, improving public health, and reducing income inequality. Food banks and food pantries have proliferated in response to an economic emergency. The loss of manufacturing jobs combined with the recession of the early 1980s and Reagan administration cutbacks in federal programs led to an explosion in the growth of food charity. This was meant to be a stopgap measure, but the jobs never came back, and the “emergency food system” became an industry. In Big Hunger, Andrew Fisher takes a critical look at the business of hunger and offers a new vision for the anti-hunger movement. From one perspective, anti-hunger leaders have been extraordinarily effective. Food charity is embedded in American civil society, and federal food programs have remained intact while other anti-poverty programs have been eliminated or slashed. But anti-hunger advocates are missing an essential element of the problem: economic inequality driven by low wages. Reliant on corporate donations of food and money, anti-hunger organizations have failed to hold business accountable for offshoring jobs, cutting benefits, exploiting workers and rural communities, and resisting wage increases. They have become part of a “hunger industrial complex” that seems as self-perpetuating as the more famous military-industrial complex. Fisher lays out a vision that encompasses a broader definition of hunger characterized by a focus on public health, economic justice, and economic democracy. He points to the work of numerous grassroots organizations that are leading the way in these fields as models for the rest of the anti-hunger sector. It is only through approaches like these that we can hope to end hunger, not just manage it.

Food and nutrition security - identified via availability, access, utilization, and stability - and transitions to sustainable food systems are major discourses in the agro-food arena, as many countries today experience different forms of malnutrition simultaneously, such as child undernutrition, anemia among women, and adult obesity. Meanwhile, the triple burden of malnutrition (undernutrition, overnutrition, and micronutrient deficiency) is still widespread. Food Security and Nutrition explores integrated, context-specific approaches to food security challenges, emphasizing nutrition security as an integral component and addressing the implications of food content to food and nutrition security policies. Providing insight into these challenges through agricultural, policy, nutritional, geographic and sustainability lenses, Food Security and Nutrition is a valuable reference for food scientists and nutrition researchers working in food supply, food security, and nutrition security, and policy makers, investors, and other decision-makers seeking to address food insecurity around the world. Addresses nutrition security as part of the overall challenge of food security Explores contributing factors that impact both food and nutrition security Presents insights into effective policy development and implementation