The so-called hairy food refers to food that is particularly likely to induce certain diseases (especially old diseases) or aggravate existing diseases. The taboo on food is important in diet and dietary treatment. Under normal circumstances, the hair of the food is also food, moderate consumption of most people will not produce side effects or cause discomfort, but only for some special body and its related to certain diseases will induce morbidity.

Hair products such as chicken, eggs, pork, etc. for the human body for the foreign protein, this foreign protein can constitute an allergen and lead to human disease. Fish, shrimp, crab itself contains histamine, and histamine can increase vascular permeability, microvascular dilatation, congestion, plasma exudate, edema, glandular hypersecretion and eosinophilic leukocytes increase, which led to the body's metabolic reaction, that is, allergic reaction, induced skin diseases, such as erythema, papules, blisters, fever, and so on. Some hypersensitive patients, even to rice, wheat, corn, etc. can produce allergic reactions. Wine, onions, garlic, etc. can be directly caused by alcohol or volatile stimulating substances, skin capillary dilation, accelerated blood flow, so that the original skin disease aggravated or prolonged. Modern clinical research has also confirmed that avoid eating hairy food is also important for reducing wound infection and promoting wound healing after surgery.

According to the performance of the hairy things are divided into six categories:

One for the heat of things, such as scallions, ginger, peppercorns, pepper, mutton, dog meat, etc.;

Second for the wind of things, such as shrimp, crabs, geese, eggs, tsubaki buds, etc.;

Third is the development of hot and humid things, such as caramel, glutinous rice, pork, etc.;

Third is the development of cold accumulation of things, such as watermelon, pears, persimmons and so on.

Fifth, start the blood of things, such as pepper, pepper, etc.;

Sixth, hair stagnation of things, such as mutton, lotus seeds, fructus, and so on.