Patients with psoriasis should consume more common fruits such as bananas, oranges and apples, as they are rich in a large amount of vitamin C and vitamin B, which are helpful for the recovery of psoriasis. Fruits with special odors and distant origins should be eaten sparingly, such as durian and mango from the tropics, which, as seen by clinical experience, tend to induce inflammatory reactions and lead to a higher possibility of psoriasis aggravation. On the other hand, psoriasis requires a lot of protein and fiber and iron when reconstituting because of the large amount of scales shed, and more rough grains rich in B vitamins should be eaten in addition to fruits, eggs and milk rich in high quality protein, etc. Beef and mutton contain a large amount of arachidonic acid, which may induce psoriasis or lead to aggravation, and it is recommended to consume such irritating foods as little as possible.