Elderly people with cerebral insufficiency of blood supply can drink low-fat milk powder. The fat content of low-fat milk powder is relatively low, which will not affect the blood lipid level significantly. Low-fat milk powder is rich in protein and various trace elements, which can replenish a variety of nutrients for elderly patients. Elderly patients with cerebral arterial insufficiency can drink low-fat milk powder appropriately. Elderly patients mostly have cerebral arteriosclerosis, on the basis of cerebral arteriosclerosis, there will be insufficient cerebral blood supply, manifested in the symptoms of dizziness, and even cerebral infarction will occur in serious cases. Elderly patients with insufficient blood supply to the brain should control their diets, mainly low-fat diets, and eat more green and fresh vegetables to avoid elevated blood lipid levels. Elderly patients with insufficient blood supply to the cerebral arteries should adjust their diet and take oral medication under the guidance of a physician.