1. Hair refers to food that is nutritious or irritating, and it is particularly easy to induce certain diseases (especially old diseases) or aggravate existing diseases.

2. Hair taboo is of great significance in diet health care and dietotherapy. In general, hair is also food. Moderate consumption will not cause side effects or discomfort to most people, but will only induce some diseases related to some special constitutions.

3. Common hair products include pig's head, chicken, eggs, donkey meat, roe, beef, mutton, dog meat, goose, goose eggs, duck eggs, pheasants and other meats; There are carp, silver carp, squat fish, silver carp, white fish, yellow croaker, cuttlefish, pomfret, shad, perch, sturgeon, shad, octopus, flounder, minnows, hairtail, bighead carp, eel and so on. There are Chinese toon head, radish, coriander, mustard, spinach, bean sprouts, lettuce, eggplant, water bamboo, leek, bamboo shoots, pumpkin, arrowhead, mushrooms and other vegetables; There are apricot, plum, peach, ginkgo, mango, bayberry, cherry, litchi, melon and other fruits; There are spicy and pungent seasoning foods such as onion, pepper, ginger and garlic; There are also vegetable oil, distiller's grains, liquor, peas, soybeans, tofu, tofu, silkworm chrysalis and so on. Sometimes, meat, smell, smell and all other foods are regarded as hair products, especially suitable for skin patients with sores, swelling, chronic eczema and dermatitis and allergic diseases.