The communist German Democratic Republic was established in the historic "Mitteldeutschland" ( Middle Germany ). Former German territories east of the Oder and Neisse rivers, mainly the Prussian provinces of Pomerania , East Prussia , West Prussia , Upper Silesia , Lower Silesia , the eastern Neumark of Brandenburg , and a small piece of Saxony were thus detached from Germany. To compensate Poland for the USSR's annexation of its eastern provinces, the Allies provisionally established Poland's post-war western border at the Oder–Neisse line at the Yalta Conference (1945). As a result, most of Germany's central territories became the Sowjetische Besatzungszone (SBZ, Soviet Occupation Zone). All other lands east of the Oder–Neisse line were put under Polish administration, with the exception of historic northern East Prussia , which went to the USSR. 
Many Germans have begun to modify their eating habits to lower their calorie and cholesterol intake. Since the unification of East and West Germany in the 1990s, the government has faced the challenge of bringing the living conditions in the former East Germany up to the standard found in the former West Germany. Upgrading housing, schools, and utilities will continue after 2001. Despite unequal living conditions, Germans in all parts of the country are well nourished. In fact, most German children have enough to eat.