Providing a wholesome and adequate food supply is the most basic tenet of agricultural sustainability. However, sharp increases in global food prices have occurred in the past 2 years, bringing the real price of food to the highest level seen in 30 years (FAO, 2008). This dramatic shift is a fundamental concern. The role of ‘local food’ in contributing to the solution of underlying problems is currently being debated, and the debate raises a critical question: To what degree can society continue to rely on large-scale, long-distance transportation of food? Growing concerns about climate change, the longevity of fossil fuel supplies and attempts to produce energy from agriculture suggest that energy efficiency will be critical to adapting to resource constraints and mitigating climate impacts. Moreover, these problems are urgent because energy prices, biofuel production and weather-related crop failures are partially responsible for the current world food price situation. Tools are needed to determine how the environmental impact and vulnerability of the food system are related to where food is produced in relation to where it is consumed. To this end, analyses of foodsheds, the geographic areas that feed population centers, can provide useful and unique insights.

Since the founding of the Food and Agriculture Organization of the United Nations in 1946, it has reported on the serious problem of hunger in the world and has undertaken various initiatives for eradicating this problem; however, they have ended in failure. The number of people suffering from hunger has increased from 500 to 800 million in a period of six decades, despite constant growth in world food production, which has been more than sufficient to cover the needs of all of humanity since the 1970s. This paper analyses FAO initiatives in the framework of the evolution of the nutritional situation in developing countries and identifies national and regional contexts in which technical solutions may be successful, as well as those requiring the implementation of economic, political and social measures.