Chronic hyperglycaemia, confirmed with HbA1c levels, is a leading cause of diabetic complications. Recent studies point to a significant effect of postprandial glycaemia which results from an impaired ability of early secretion of insulin in type II diabetes. Postprandial hyperglycaemia is a frequent phenomenon in people with diabetes with satisfactory control of diabetes based on checks of HbA1c levels. Many authors demonstrate statistically more significant correlations between postprandial hyperglycaemia and HbA1c levels, compared to correlation of fasting glycaemia. Monitoring of postprandial glycaemia is a significant means for improving co-operation with a patient and provides a physician with a possibility of choice between an appropriate type of peroral antidiabetic or insulin.

        Key words: Postprandial glycaemia - HbA1c – Angiopathic complications