If lipids and cholesterol in the blood, especially LDL, are considered as blood waste, lipid-lowering drugs, especially statins, can remove the waste within the blood. More important than lipid-lowering drugs are lifestyle changes, including a healthy diet. It is recommended to refer to the structure and composition of the Mediterranean diet, and to choose foods according to the principles of the Mediterranean diet after calculating total calories. In addition, active exercise and strict control of diseases that cause atherosclerosis, including hypertension, hyperglycemia, obesity and smoking, are the only ways to minimize the amount of waste in the blood and thus to protect the blood vessels.