Cerebral blood supply insufficiency may be related to cardiovascular diseases, intracranial tumors, hypoglycemia and other diseases, patients should not eat high salt, high fat, high calorie food, easy to increase blood viscosity and atherosclerotic changes, aggravate the cerebral blood supply insufficiency, but also prohibit smoking and alcohol, the same will stimulate blood vessels. It is not advisable to eat greasy high-fat and high-calorie foods, such as animal liver, butter and other foods, as well as fried and deep-fried foods. Patients who consume high-fat foods will consume a large amount of cholesterol, which will lead to elevated blood lipids, increased blood viscosity, slowed blood flow, and aggravated cerebral blood supply insufficiency. It is not advisable to eat smoked and pickled foods, such as pickles, salted vegetables, soy sauce tofu, smoked meat, etc. These are high salt foods, which will affect the fluctuation of blood pressure. It is not advisable to eat sweets, such as desserts, which contain high calories and can cause blood sugar to rise, irritate the walls of blood vessels, slow down blood flow, and aggravate cerebral blood supply insufficiency. Seek medical advice if you feel unwell.