Rationing of the country, through the 'levelling of consumption of essential foodstuffs'. To assist with rationing, ration books were introduced on 1918 for butter, margarine, lard, meat and sugar. During the war, average calories intake decreased only three percent, but protein intake six percent. Food rationing appeared in Poland after the First World War, and ration stamps were in use until the end of the Polish–Soviet War. Rationing became common during the Second World War. Ration stamps were often used. These were redeemable stamps or coupons, and every family was issued a set number of each kind of stamp based on
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