The efficacy of hawthorn slices in water needs to be different from person to person, and there is no obvious special efficacy in general. But from the analysis of the nutritional elements contained in hawthorn, it can help digestion, replenish water and supplement vitamins. Hawthorn fruit is close to spherical, mature hawthorn color is mostly red, if choose hawthorn slices for brewing and drinking, it will not play the specific efficacy, such as treating and preventing related diseases, etc., and there are limitations in the substances absorbed by drinking. If only from the perspective of the nutritional value of hawthorn slices in water, hawthorn slices contain many kinds of organic acids, appropriate drinking can promote the secretion of gastric acid, enhance appetite and promote digestion. In addition, hawthorn slices soak water to drink, into the human body is the most components of water, can also be for the body in time to replenish water, relieve due to lack of water caused by dry mouth, thirst and constipation and other phenomena. Hawthorn slices also contain vitamin C, vitamin P and other substances, which can help the organism to function normally. Further consultation with professionals is recommended regarding the efficacy of hawthorn slices in water. In daily life, it is not advisable to rely on hawthorn slices in water to play a role in treating diseases.