Halal is a label given to foods which are ceremonially slaughtered according to Muslim traditions, as stated in the Qu'ran. It is similar to the Jewish tradition of Kosher food (i.e., pork is not allowed), and has a common origin in early monotheistic scripture.
'Halal' is the Arabic word for 'allowed' or 'permissible', and is used as a generic term used to describe anything which is lawful or allowed in Islam.
Muslims are only allowed to eat meat from animals or birds which have been slaughtered in a particular fashion. The animal must be cut with a sharp knife across the neck in such a fashion that its blood is drained. During the slaughtering, Allah's name is also mentioned as a way of showing gratitude.
- All types of fish are 'halaal,' and don't have to be slaughtered.
- Animals which have died naturally of illness or disease are not 'halaal' and may not be eaten.
- Carnivorous animals such as tigers, lions, and any other animals which feed on flesh may not be eaten.
- Land scavengers such as pigs, or anything originating from them, is specifically mentioned in the Qur'an as not allowed to be eaten.
- Food sacrificed in the name of other deities is also not permissible.