After pituitary tumor surgery, the diet should be regular, do not overeat, and eat on time. The diet should include more fruits, more vegetables, more dietary fiber-rich foods, and more water to help keep the bowels open, which is more conducive to nutrient absorption and can promote faster recovery. Usually, you should eat more foods rich in vitamin C, carotene and vitamin B2, which are helpful for the optic neuropathy occurred by pituitary tumor. The diet should be light, with less spicy, fried, deep-fried and other undigestible or stimulating foods. It is also recommended not to drink alcohol because it can cause blood vessel spasm and may also lead to higher blood pressure, accelerating blood flow, which is not conducive to patient recovery. Foods high in phospholipids can be used to help improve brain function, such as egg yolk, fish, shrimp, walnuts, peanuts, etc.