Complex sentence: Consumption of pork is forbidden by Jewish and Muslim dietary law, a taboo that arises from perceptions of pigs' hygiene (they wallow in mud to keep cool) as well as from the ways pigs are slaughtered.
Split into simpler sentences: Consumption of pork is forbidden by Jewish and Muslim dietary law. It owes to the nature of pigs' hygiene (they wallow in mud to keep cool) as well as from the ways pigs are slaughtered.