Islamic diet is based on the principle of beauty. The so-called "beauty" mainly refers to the "cleanliness and personality" of food. Muslims talk about "hygiene and health", which can be described as "food for nourishment". Therefore, there are many kinds of meat that Hui people don't eat, and pork is just one of the fasting foods.
Pigs are ugly, weird, greedy and stupid. The language of all nationalities in the world uses the word "pig" to describe ugly, lazy and stupid people.
Other taboos:
Fasting and self-immolation: one of the dietary taboos of Hui people. Islam regards dead things as unclean, so it fastes.
Fasting non-ruminant animals: one of the dietary taboos of Hui people. Hui people fast the meat of non-ruminant animals such as donkeys, horses and mules, and also fast the meat of carnivores such as cats and dogs.
Fasting birds of prey and beasts of prey: one of the dietary taboos of Hui people. Islam not only regards birds of prey, beasts, monsters and strange fish as unclean things, but also considers them ferocious, violent and evil, which makes people move after eating them, so it is strictly forbidden to eat them.