The normal blood glucose value 2 hours after a meal for people aged 50 to 60 years should be less than 7.8mmol/L, and in the case of diabetic patients, the blood glucose needs to be controlled below 10mmol/L. Blood glucose refers to the glucose in the blood, which is the mobile form of sugar in the body, and can be used as an energy substance for the brain, heart and skeletal muscle. The level of blood glucose in different states can reflect whether there are abnormalities in the body’s sugar metabolism. Fasting blood glucose and 2-hour postprandial blood glucose values are generally used to compare with normal values to diagnose the presence of diabetes, and can also be used to assess the glycemic control of diabetic patients. People aged 50-60 need to pay close attention to the fasting blood glucose and 2-hour postprandial blood glucose values to determine whether there is an abnormality of glucose metabolism in time, so that early detection and treatment can be carried out as soon as possible. Maintain a good lifestyle, take care of reasonable diet and regular exercise. If necessary, consult a doctor in time.