Why can't muslims eat pork?

Muslims do not eat pork or pork products because God has prohibited it in the Quran, alongside carrion, blood and meat sacrificed to other than God. That is the primary reason: a Muslim obeys the command whether or not the wisdom behind it is known. The Quran gives only one description of the flesh of swine, that it is impure, and Muslim writers note that a believer submits willingly without demanding an explanation. Secondary reasons have since emerged. Long before the microscope, the prohibition covered exactly the foods in which bacteria and parasites thrive, and the pig’s body hosts parasites, bacteria and viruses that can pass to humans and cannot be removed by any method of purification. Muslims see this as confirmation, not the basis, of the rule. The articles “Why Pork is Forbidden in Islam?” and “The Prohibition of Pork: A Scientific Proof” cover both aspects.