For the elderly with hypertension, dietary regulation should be carried out. In the diet, do not eat foods with high animal fat and cholesterol, such as fat meat, lard or animal viscera, but also eat less or do not eat foods with high salt content, such as pickles, salted fish, bacon, etc. We should eat more fresh vegetables and fruits. We should try to eat a light diet at ordinary times. We should eat some high-quality protein foods such as fish, shrimp, lean meat, chicken, milk and bean products.