Soy lecithin can be taken for high blood fat, but it should not be taken as a substitute for medication. Soy lecithin is a kind of health care medicine with high nutritional value. It can inhibit the absorption of cholesterol in the intestines, thus playing a role in lowering cholesterol and preventing atherosclerosis. Therefore, for patients with high blood fat, soy lecithin can be eaten, but not a substitute for drugs to lower fat. For patients with high blood lipid, reasonable diet and exercise are necessary. Dietary advice is low salt, low sugar, low fat, low cholesterol-based food, avoid animal offal, meat oil, fat meat and so on. Exercise suggests jogging, yoga, tai chi and other aerobic exercises. In addition to this, patients are also advised to quit smoking and drinking, and maintain a healthy body weight. If it is difficult to maintain the stabilization of blood lipids by lifestyle improvement, appropriate medication should be used under the guidance of a doctor.