Is it normal to have a blood sugar of 4.3 two hours after a meal?

A two-hour postprandial blood glucose of 4.3 mmol/L is within the normal range.
The 2-hour postprandial blood glucose is required to be calculated after two hours from the first bite of food consumed by the examinee. For normal people, the 2-hour postprandial blood glucose should be less than 7.8mmol/L, so the 2-hour postprandial blood glucose of 4.3mmol/L is within the normal range.
For diabetic patients, the 2-hour postprandial blood glucose control target is within 10mmol/L, and the 2-hour postprandial blood glucose of 4.3mmol/L belongs to the blood glucose with fair control. However, the diagnostic criterion for diabetic hypoglycemia is less than 3.9mmol/L, so beware of hypoglycemia.
If you have abnormal blood glucose values, it is recommended that you go to the hospital and ask your doctor to make a judgment.