People are living organisms, growth, development, metabolism can not be separated from water, electrolytes, protein, sugar, fat, vitamins, etc., these substances often need to be obtained from food, especially protein, is the material basis of the body’s resistance to disease and infection, need to be taken from poultry, livestock, fish and milk and other animal protein and plant protein food, lack of or insufficient intake, it will affect the body’s growth, development, affect The lack or insufficient intake will affect the growth and development of the body, affecting the normal metabolism of the body, resulting in a decrease in body resistance, susceptible to infection by various pathogens, inducing or aggravating certain diseases. Through reasonable food allocation, supplying the human body with a complete variety of nutrients, sufficient quantity and appropriate ratio of meals, a balanced relationship can be established between the nutritional needs of the human body and dietary supply, so as to achieve the purpose of reasonable nutrition, promoting growth and development, preventing diseases and promoting health, and delaying aging. Psoriasis is a chronic erythematous and scaly skin disease, and patients often shed a large amount of skin flakes, which have a high content of protein and lipid, resulting in the loss of a large amount of protein in the organism. The lack of these nutrients and accelerated metabolism is also one of the factors for the onset of psoriasis and the intensification of the disease. Therefore, psoriasis patients should supplement protein, vitamins and various trace elements in appropriate amounts, and the more flakes are shed and the longer the disease lasts, the greater the amount of supplement needed. The diversity of food, such as eating poultry, livestock, fish and other meat and various fruits and vegetables, is the best way to obtain the various nutrients needed by the body. Due to the traditional concept of dietary restrictions on psoriasis patients, as well as the fact that certain foods can induce or aggravate psoriasis, patients tend to avoid eating some spicy and irritating foods, and as long as they hear which foods can induce or aggravate psoriasis, regardless of whether they are sensitive to such foods, they will no longer eat them, so that some patients only eat rice, steamed buns and pickles for a long time, causing serious malnutrition, while psoriasis itself has not The psoriasis itself is not reduced as a result, and even becomes more serious. Therefore, how to correctly guide patients’ diet is an aspect of psoriasis prevention and treatment that cannot be ignored. Research has confirmed that cattle, sheep, deer and other livestock foods are rich in arachidonic acid, and psoriasis skin lesions contain more than 20 times the normal human skin arachidonic acid, these chemicals are metabolized in the body into leukotrienes, which are important inflammatory substances for psoriasis. Therefore, psoriasis patients should avoid eating meat and poultry foods with high arachidonic acid content to avoid the increase of inflammatory substances in the body and aggravate the inflammation of psoriasis lesions. But not all foods with high arachidonic acid content can contribute to the exacerbation of psoriasis, such as fish oil also has a high content of arachidonic acid, the product of metabolism in the body can inhibit platelet aggregation, reduce leukotriene B4 synthesis, thereby reducing the chemotaxis of inflammatory cells and inhibit the production of cytokines, so the consumption of deep-sea fish food is beneficial to the alleviation of psoriasis, clinical treatment of psoriasis with fish oil Therefore, consumption of deep-sea fish food is beneficial to the remission of psoriasis, and the clinical treatment of psoriasis with fish oil has good efficacy. Except for certain foods, such as beef, mutton, venison and dog meat, which can induce or aggravate psoriasis, there is no evidence that other foods can induce or aggravate psoriasis, and the onset of some patients is related to the consumption of certain foods, most of which is purely coincidental. However, not all patients with psoriasis should be allowed to consume too much of certain foods, but they should be allowed to do so on a case-by-case basis. If patients are allergic to certain foods or if itching intensifies, skin becomes red and new rashes appear after consuming certain foods, they should avoid eating them again. Generally in the progressive stage of psoriasis patients should eat less or forbidden to eat fishy seafood and spicy stimulating food, more soy products, vegetables and fruits, etc., to be stabilized or remitted, and then according to their own situation selective “taboo”, and to individualize, can not be generalized. High-fat and high-sugar foods are not good for healthy people, and they are certainly not good for psoriasis patients. Patients with high blood lipids should have a low-fat diet. At the same time, overeating is detrimental to health and should be avoided by psoriasis patients. Vitamins are very important to the human body, such as vitamin C, vitamin A, vitamin B complex, vitamin D and vitamin E are indispensable. Therefore, you should eat more vitamin-rich vegetables and fruits, especially in winter. In conclusion, a scientific and reasonable diet is beneficial to the health and recovery of psoriasis patients. Generally speaking, drinking a lot of alcohol is not good for the body and may also induce psoriasis, especially when you are angry and in a bad mood, you should not drink booze, which is very easy to induce psoriasis. We suggest that psoriasis patients try not to drink or drink less, because alcoholism is always bad for the body. As for smoking, it is better to not smoke. Because smoking is not only harmful to the body by inhaling nicotine, but also smoking tends to cause dry throat, leading to chronic infection of the upper respiratory tract and easily triggering psoriasis. So psoriasis patients better drink less and don’t smoke, so as to both benefit health and save money.