The reasons why this kind of people don't eat pork are religious doctrine, historical and cultural background, etc.

religious teachings: the core of halal culture-Islam. In the belief system of Islam, dietary taboos are an important part. These taboos are not only related to the physical and mental health of individuals, but also closely related to religious beliefs and ethics. In the teachings of Islam, pork is regarded as unclean, so it is strictly forbidden to eat.

2. Historical and cultural background: In China, Muslim culture is mainly distributed in northwest areas such as Xinjiang, Ningxia and Gansu, and the natural conditions such as climate and soil in these areas are not suitable for raising pigs. Therefore, the Muslim culture has formed a diet structure with beef and mutton as the main source of meat in history. This diet structure has been inherited and developed in the Muslim culture, and gradually formed a unique muslim food culture.