The arabic word 1. Pig 
(Haram) means unlawful. The following items have been categorically spelled
out as being Haram by jurists in light of the Holy Quran and the Sunnah
of the Prophet Mohammad 
:
2. Blood
3. Carnivorous animals
4. Almost all reptiles and insects
5. The bodies of dead animals
6. Halal animals which are not slaughtered according to the Islamic Law.
7. Wine, Ethyl Alcohol, and Spirits.
The above mentioned items are Haram and should be avoided by all Muslims.