In Hebrew, “Kashrus,” from the root kosher (or “kasher”), means suitable and/or “pure”, thus ensuring fitness for consumption.
The laws of “Kashrus” include a comprehensive legislation concerning permitted and forbidden foods. There are several aspects to these dietary rules. We will consider each aspect in turn.
The Torah permits only land animals 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.
The Torah lists winged creatures which may not be consumed, mainly birds of prey, fish-eating water-birds, and bats. The Torah permits fish residing in “the waters” (seas and rivers) only having both fins and scales.
The Torah forbids creeping things that crawl the earth (Hebrew: sheqets) and “flying creeping things“, with four exceptions: two types of locust, the beetle/cricket, and the grasshopper.
Kosher food is food prepared in accordance with Jewish Dietary Laws. While Jewish Dietary Laws originated in the Bible (Leviticus 11 and Deuteronomy 17), they have been codified and interpreted over the centuries by rabbinical authorities