Soy lecithin and fish oil are generally taken by patients at or after meals, or before sleep. In clinical practice, soybean lecithin and fish oil are rich in nutrients, which can soften blood vessels and change serum lipids, lower cholesterol and fat content in the blood, thus reducing blood viscosity and promoting blood circulation. Generally, taking some deep-sea fish oil can also discharge the excess cholesterol and metabolic waste from the cardiovascular system. In addition, it is suggested that patients should take it properly, and it should not be used as the main medicine for treating diseases. At ordinary times, we should exercise more to improve our physical fitness, drink more water and urinate more frequently.