Thickening of the blood generally refers to high blood viscosity, and it is important to abstain from eating fatty meats, animal offal, fried and barbecued foods. High blood viscosity is usually caused by high blood fat, and this group of people has a higher risk of developing vascular embolic disease. Dietary control should be paid attention to in daily life. Foods high in fat and cholesterol are not recommended, such as fatty meat, animal offal, fried food, barbecue food, and so on. You can eat some soy products and other foods rich in high quality protein, as well as celery, corn, buckwheat and other foods rich in dietary fiber, and you can also eat some fresh fruits and vegetables to supplement the body’s vitamins, trace elements and minerals. It is recommended to drink a moderate amount of water, a balanced diet, and appropriate physical exercise to promote blood circulation and improve the lipid profile.