The nomads of Mongolia sustain their lives directly from the products of domesticated animals such as cattle, horses, camels, yaks, sheep, and goats, as well as game.[1] Meat is either cooked, used as an ingredient for soups and dumplings (buuz, khuushuur, bansh, manti), or dried for winter (borts).[1] The Mongolian diet includes a large proportion of animal fat which is necessary for the Mongols to withstand the cold winters and their hard work. Winter temperatures are as low as −40 °C (−40 °F) and outdoor work requires sufficient energy reserves. Milk and cream are used to make a variety of beverages, as well as cheese and similar products.