Why do Muslims refrain from eating pork?
Because Allah (God) said so (Leviticus 11:7-8, Deuteronomy 14:3, 14:8, Holy Quran Surah 2:173). It was a filthly and abominable creature 4,000 years ago and is a filthy and abominable creature today. Proof is the pork related diseases in many people (especially Blacks) in which pork is in their daily diet.