Kosher foods are those that conform to the regulations of kashrut (Jewish dietary law). Food that may be consumed according to halakha (Jewish law) is termed kosher (pronunciation: /koʊʃər/) in English, from the Ashkenazi pronunciation of the Hebrew term kashér (כָּשֵׁר, pronunciation: /kɑːʃɛər/), meaning "fit" (in this context, fit for consumption). Food that is not in accordance with Jewish law is called treif (Yiddish: טרײף, pronunciation: /treɪf/, derived from Hebrew: טְרֵפָה trāfáh) meaning "torn."
The Torah permits only animal species which both chew the cud and have cloven hooves. Four animals are specifically identified as being forbidden for this reason; the hare, hyrax, camel, and pig – although the camel has two toes, and the hare and hyrax are hindgut fermenters rather than ruminants.