There are several religions that prohibit or discourage the consumption of pork. The two most well-known religions that forbid pork consumption are Judaism and Islam. There are also other religious groups, such as Seventh-day Adventists and Rastafarians, that discourage pork consumption, but for different reasons.

Judaism is one of the oldest monotheistic religions in the world, with a rich history dating back thousands of years. The Jewish dietary laws, known as Kashrut, prohibit the consumption of pork among other things. These laws are detailed in the Torah, the Jewish holy book. The prohibition against pork is based on several passages in the Torah, including Leviticus 11:7-8 and Deuteronomy 14:8-9. These passages state that pigs are unclean animals and should not be eaten.
According to Jewish law, any animal that is consumed must have split hooves and chew its cud. Pigs do have split hooves, but they do not chew their cud, making them unclean. Additionally, pigs are known to eat anything, including garbage and other animals, which further reinforces their status as unclean animals. As a result, pork is considered non-kosher, meaning it is not suitable for consumption by Jews.
Islam, the second-largest religion in the world, also prohibits the consumption of pork. This prohibition is based on the teachings of the Quran, the holy book of Islam. According to the Quran, pork is haram, which means it is forbidden for Muslims to eat. The Quran states in several passages, including Surah Al-Baqarah 2:173, that Muslims should not consume any meat that is not slaughtered in the name of Allah, and that pork is an impure and unclean animal.
Muslims are also required to follow certain dietary laws, known as Halal, that dictate what is permissible to eat. Halal meat must come from animals that are healthy and free from disease, and must be slaughtered in a specific way, with a sharp knife that cuts the throat of the animal while the name of Allah is recited. Pork is not considered Halal, and therefore cannot be consumed by Muslims.
While Judaism and Islam are the most well-known religions that prohibit pork consumption, there are other religious groups that discourage it for different reasons. Seventh-day Adventists, a Protestant Christian denomination, encourage a plant-based diet and discourage the consumption of pork and other meats that are high in fat and cholesterol. They believe that a healthy diet is essential for physical and spiritual well-being, and that avoiding certain foods can help individuals achieve optimal health.
Rastafarians, a religious movement that originated in Jamaica in the 1930s, also discourage pork consumption. Rastafarians follow a strict dietary code known as Ital, which promotes the consumption of natural, organic, and unprocessed foods. They believe that consuming pork and other meats can lead to spiritual and physical impurities, and that a plant-based diet is essential for maintaining a healthy mind and body.
In conclusion, several religions prohibit or discourage the consumption of pork for different reasons. Judaism and Islam prohibit pork consumption based on the belief that pigs are unclean animals that are not suitable for human consumption. Seventh-day Adventists and Rastafarians discourage pork consumption for health and spiritual reasons. While dietary restrictions may differ between religions, the common thread is the belief that what we consume can have a significant impact on our physical and spiritual well-being.