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
In Judaism and within other groups following the Hebrew Torah certain locusts are allowed as food (Leviticus 11:22 and Matthew 3:4). Except for certain locusts and related species, insects are not considered Kosher foods; dietary laws also require that practitioners check food carefully for insects. In Islam locusts are considered lawful food along with fish that do not require ritual slaughtering.