Why did office of war information advise citizens to eat less during the war?

During World War II, the Office of War Information advised citizens to eat less to conserve food resources for military personnel and to support the war effort. Rationing was implemented to ensure that essential supplies were available for troops and to manage shortages caused by wartime production demands. By encouraging citizens to adopt more frugal eating habits, the government aimed to promote a sense of unity and shared sacrifice among the American public.