Rationing in the United Kingdom warfare to try to starve Britain into submission. To meet this threat, voluntary rationing was introduced in February 1917. Bread was subsidised from September that year; prompted by local authorities taking matters into their own hands, compulsory rationing was introduced in stages between December 1917 and February 1918 as Britain's supply of wheat decreased to just six weeks' worth. To help the process, ration books were introduced in July 1918 for butter, margarine, lard, meat, and sugar. For the most part, rationing benefited the health of the country. During the war, average energy intake decreased by only 3%, but protein
Rationing in Cuba palm fronds. It was estimated in the early 2000s that the rationing covered between one third and one half of a family's needs. President Raul Castro moved to eliminate many products from the rationing system, including potatoes and peas. The "libreta" is not the only means of acquiring goods available to a Cuban citizen, as many of these and other products are freely available on the "mercado libre" (free market) and "mercado paralelo" (parallel market), and in the numerous supermarkets and stores that sell goods in convertible pesos. (Such stores were originally set up taking United States Dollars and were