The normal value of blood glucose three hours after eating food should be 3.9-6.1mmol/L for recovery or close to fasting blood glucose, and it is normal to have blood glucose value within this range 2-3 hours after eating, once it exceeds this range, we should consider the situation of having diabetes. If the blood glucose level is high after meals, consider whether it is due to the lack of reasonable eating habits. Some diabetic patients think that it is okay to measure blood glucose before eating, but it is not good for the body to have a high blood glucose level after eating and not taking medication. If your blood glucose is higher than normal, you should pay more attention to your diet, consume less carbohydrates, and eat more vegetables and fruits that lower blood glucose, such as bitter melon, cucumber, tomatoes, etc.