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.
Kosher restaurant
Because many foods (excluding among others pork or shellfish) can be kosher as long as the food is prepared heeding Jewish laws, there are "kosher steakhouses, kosher pizzerias, kosher fish joints, kosher Indian restaurants, kosher Thai places," and other sorts.