How much glucose powder to drink in a day cannot be generalized and needs to be analyzed according to the purpose of glucose powder. It is not recommended to drink glucose powder for those who are able to eat a normal diet. The staple food, i.e. carbohydrates, will be broken down into glucose when it enters the human body, which will provide energy as the main energy-supplying substance, so there is no need to drink glucose powder. For testing diabetes, such as determining whether diabetic patients have abnormal glucose tolerance or impaired fasting glucose status, this time to drink 75g anhydrous glucose powder or 82.5g monomolecular water glucose powder at a time, with 200ml melting, for glucose tolerance measurement, test whether diabetes. If it is hypoglycemia can be quickly elevated by oral glucose powder, drink 100-150g glucose powder at a time to elevate blood sugar.