In terms of diet, a very important content of Taoist health preservation is dietary taboo. Taoism especially emphasizes the prohibition of alcohol, meat and coriander. Nowadays, among the two major schools of Taoism, Quanzhen abides by the old adage, painstakingly manages, fails to become a family, and is strictly forbidden to be cruel. However, marriage is allowed. People can't help drinking except during fasting, but they just want to keep clean. There are two kinds of modern Taoist priests: Quanzhen Taoist priests are monks, with their hair and beard all stored up and their heads tied in a bun. Mostly vegetarian, emphasizing self-cultivation; Zhenghe Taoist priests generally have no hair, and practice emphasizes Fuyong, so they can get married and eat meat. Most of them are monks who don't become monks, also known as fire monks, and a few are monks who mainly engage in Taoist sacrificial activities. Modern orthodox disciples should be taught to become qualified Taoist priests, while Quanzhen disciples should be taught precepts.