Wang Zhenshan, director of China Propolis Professional Committee and researcher of Chinese Academy of Sciences, replied: Propolis has many health-care functions: First, it can strengthen the immune system and enhance the vitality of immune cells. Second, purify blood function. Propolis can enhance the contractility of the heart, deepen breathing, regulate blood pressure, purify blood and regulate blood lipids. Thirdly, for diabetic patients, propolis contains active enzymes such as trypsin and antiviral components, which has a positive effect on restoring pancreatic function. Flavonoids and terpenoids in propolis can promote the synthesis of glycogen from exogenous glucose and regulate blood sugar in both directions. Propolis can activate cells, promote tissue regeneration, and play a positive role in repairing damaged islet cells and tissues. Fourthly, propolis has a broad spectrum of anticancer, which can inhibit the metabolic activity of carcinogens and enhance the normal cell membrane activity. Propolis can repair and protect immune organ tissue damage, and prevent the decrease of spleen cell number and thymosin activity. But propolis is not a panacea for all diseases. 1. From a scientific point of view, propolis has its limitations and is not omnipotent. Under the guidance of a doctor, choose propolis drugs with the approval number of drug quasi-word approved by the state drug supervision and administration department, and read the instructions carefully before taking them. 2. The raw material propolis cannot be eaten directly, because it may contain excessive heavy metals and unnatural inclusions. 3. Infants, pregnant women and people with allergies are not suitable. 4. Eat propolis continuously. The temperature is high in spring and summer, the activity is large, and the metabolism is vigorous. Therefore, it is necessary to supplement the flavonoids that are insufficient in the diet in time. In addition, propolis is non-toxic and can be safely eaten.