As one of the “five horses” in the treatment of diabetes, blood glucose monitoring is a link that sugar lovers should take seriously every day, especially for those who have been ill for a short time, fasting blood glucose value, meal two blood glucose value, random blood glucose value, etc. should be measured diligently, only in this way can we find the most suitable treatment plan for ourselves as early as possible. Fasting blood glucose and postprandial blood glucose have control standards, and meal two blood glucose values are generally higher than fasting blood glucose, however, some sugar lovers find that meal two blood glucose values are lower than fasting blood glucose values through monitoring, so what is the reason for this? There are three main reasons why meal two blood glucose value is lower than fasting blood glucose value: 1. Excessive insulin secretion and delayed peak In general, normal people’s blood glucose value will rise after eating. Half an hour to an hour after eating, the blood glucose value will reach the peak, and then will be on a downward trend; the plasma insulin level also rises to the peak half an hour to an hour after eating, or later, which is usually 5 to 10 times of the basal value, and then starts to be on a downward trend, and will return to the basal level after 3 to 4 hours. Therefore, after eating, normal people’s postprandial blood glucose will also rise, but it will fluctuate within a range, while type 2 diabetic patients will have excessive insulin secretion (hyperinsulinemia) and delayed peak, insulin will be maintained at a higher concentration level and cannot recover to the baseline level in time, so it is easy to see the situation of low blood glucose value in the second meal, and serious cases will even occur. Hypoglycemia 2. Insufficient diet and excessive intensity of exercise after meals In order to control blood sugar and weight, diabetic patients should control their diet well and adhere to appropriate amount of physical exercise every day after diagnosis, which is the most basic and important treatment method. It is also only through controlling diet and exercise that sugar lovers’ blood sugar will reach the standard and the dose of glucose-lowering drugs will be much reduced. The amount of diet should not be too much or too little, and the amount of exercise should not be too little or too much. If the control diet diet is too strict and the amount of exercise after meals is too large, sugar lovers will also have low blood sugar in the second meal, which, of course, will also lead to the appearance of hypoglycemic symptoms. Therefore, sugar lovers should develop good eating habits of regularity and quantity, and also choose appropriate exercise items and control the time of exercise, so as to avoid the situation of low blood sugar after meals. 3, affected by hypoglycemic drugs Hypoglycemic drugs are an important means to control blood sugar, but some sugar lovers are eager for success, or do not consult professional doctors and increase the dose of drugs without authorization, and the diet program does not match at all, which will lead to a significant reduction of postprandial blood sugar. In addition to increasing the dose of medication, some sugar lovers also use other drugs that enhance the effect of hypoglycemic drugs, which will also lead to low blood sugar in the second meal. Therefore, when the postprandial blood sugar is low, sugar lovers should also consult a professional to adjust their medication program in a timely manner. Of course, in addition to the above three factors, low postprandial blood glucose may also be caused by measurement errors, so sugar lovers should measure several times and consider the correct response plan after making a conclusion.