The following article is concerned strictly with the energy equation of the food sytem and is intended to stimulate questions about how best to grow, transport, store and prepare (ideally local) foods. There are many reasons to favor local food, including supporting local economies and building local food security.
– Post Carbon Institute
Energy used in the food system as a proportion of total energy used in the US in 2002.
Daily per capita energy input to the US food system exceeds 17,000 Calories before food reaches the home. This is more than eight times the average Caloric requirement for a healthy diet. Most of this energy is used to provide highly-processed, high-Calorie foods.