Eating this meat it is proved that persons attitude too changes in addition to health
An analysis in the January 2013 issue of Consumer Reports magazine revealed 69% of pork chops and ground pork that the organization sampled from around the U.S. tested positive for Yersinia enterocolitica, a bacteria that, according to the Centers for Disease Control and Prevention (CDC), can result in fever, abdominal pain and diarrhea.

Relegious edicts on the face of it
but the real reason is that it is considered unhygenic
but this is a totally wrong assumption as millions of chinese eat pork and bacon etc,. people in all western countries eat the same and they are healthy, so the only real reason why muslims dont eat all this is relegious

Purely on Religious counts.
BUT, REMEMBER, when RELIGIONS were not created, RELIGIOUS RIVALRIES were not predominant ,different SELF-STYLED- REFORMERS , in different parts of Globe, started preaching their self-devised RELIGIONS, with omnivorous habits.
Even HINDUS, with the oldest history to their credits, used to eat everything, including beef & calf-tongue.

For religious reasons