The Pig Is Impure and Forbidden as Food

The Torah names the pig unclean in two separate places, Leviticus chapter eleven and Deuteronomy chapter fourteen, both of which set out the very same criterion for which land animals are permitted as food: an animal must both chew the cud and have a fully split hoof to be considered fit for eating. The pig fails the test on exactly one of the two counts, since it does have a split hoof but does not chew the cud, and both passages name the pig explicitly by name rather than leaving the case to be inferred from the general rule alone, a specificity biblical scholars have read as evidence of just how firmly established the taboo already was by the time the text itself was set down in writing. The prohibition covers eating the meat itself and, in later rabbinic elaboration of the biblical text, extends further still to deriving any benefit from the animal and to certain kinds of physical contact with it, placing the pig among a small number of animals singled out by name for an explicitness the Torah's wider dietary law does not extend to every other forbidden species. Some scholars have proposed that the rule reflects ancient near eastern public health concerns given the parasite risk of undercooked pork in a hot climate, though this hygienic explanation is now treated by most biblical scholars as insufficient standing alone, since other comparably risky foods were never prohibited and the text itself states no rationale beyond the cud and hoof criteria.

The Quran states the same prohibition entirely independently, forbidding the flesh of swine within the same short list of dietary restrictions that also names carrion, blood and any food formally dedicated to a god other than God, a list repeated with only minor wording variation across several separate verses of the text. Islamic legal tradition treats the prohibition as essentially absolute rather than as an ordinary dietary preference among several options, permitting an exception only under genuine necessity, such as survival, where truly no other food is available at all. Because both prohibitions rest on entirely independent scriptural authority within their own respective traditions rather than one tradition simply borrowing the rule from the other, and because pork nonetheless remains a widely eaten meat across much of the rest of the world, the shared taboo has become one of the most publicly recognized religious dietary restrictions in existence, cited routinely, including by members of both communities themselves, as a marker of Jewish and Muslim identity within the food practices of wider, majority pork eating societies around them. Halal certification today extends the ancient prohibition into a modern commercial industry, requiring producers to demonstrate an entire supply chain free of pork derivatives, including gelatin, enzymes and other processing aids that might otherwise go unnoticed by a consumer simply reading a product's primary list of ingredients.