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 the United States Wednesdays", the United States Food Administration under Herbert Hoover reduced national consumption by 15%. In summer 1941 the British appealed to Americans to conserve food to provide more to go to Britons fighting in World War II. The Office of Price Administration warned Americans of potential gasoline, steel, aluminum, and electricity shortages. It believed that with factories converting to military production and consuming many critical supplies, rationing would become necessary if the country entered the war. It established a rationing system after the attack on Pearl Harbor. Tires were the first item to be rationed by the OPA, which ordered