Wow I didn't know it was such a big deal like that.
I always wondered why Religious people are against Pork and most Holy books forbid eating pig? Yet is so popular to eat? Confused on that.
Pork can easily carry diseases that humans are susceptible to. Not such an issue these days with modern food processing. Bacon and other processed/preserved meats are loaded up with sodium nitrite, which also helps.
I myself have never had Pork. Just Chicken and Beef. A study by the Cancer Research Center of Hawaii and the University of Southern California suggests a link between eating processed (sodium nirite) meats and cancer risk
Most Christian denominations have no rules or biases against eating pork, so there is still a rather large market for it (not even counting those who are non-religious or non-observant).