Hawthorn contains triterpenoids, bioflavonoids and rich vitamin C, which has the functions of dilating blood vessel wall, lowering cholesterol and triglyceride and lowering blood pressure. In addition, it also contains maslinic acid and citric acid, both of which have significant hypolipidemic effects. However, some elderly people eat hawthorn, which will cause stomach discomfort such as acid regurgitation, and should be used with caution as appropriate.