Kashrut
Among the numerous laws that form "kashrut" are prohibitions on the consumption of certain animals (such as pork and shellfish), mixtures of meat and milk, and the commandment to slaughter mammals and birds according to a process known as "shechita". There are also laws regarding agricultural produce that might impact the suitability of food for consumption.
Food and drink prohibitions
Islamic, Judaic law (including Noahide Law), and some laws of some Christians forbid any portion that is cut from a live animal (Genesis 9:4, as interpreted in the Talmud, Sanhedrin 59a). Judaism restricts this prohibition to land animals and birds; fish do not require kosher slaughter, but must first be killed before being eaten.