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 Kingdom government confidence that, if necessary, food could be distributed equally to all, including high-value war workers, without causing widespread health problems. Britons' actual wartime diet was never as severe as in the Cambridge study because imports from the United States avoided the U-boats, but rationing improved the health of British people; infant mortality declined and life expectancy rose, excluding deaths caused by hostilities. This was because it ensured that everyone had access to a varied diet with enough vitamins. The standard rations during the Second World War were as follows. Quantities are "per week" unless otherwise stated. 1s 2d bought