Lack of correlation between symptoms and plasma glucose in postprandial hypoglycemia

Relation between plasma glucose concentrations and possible hypoglycemic symptoms in a patient with postprandial symptoms who was studied after oral glucose administration (dashed blue curve) and a more physiologic mixed meal (red curve). After oral glucose, symptoms occurred at both the peak and nadir of the plasma glucose responses. Similar symptoms occurred after the mixed meal even though there were no episodes of hypoglycemia. These observations indicate that the postprandial symptoms were not due to hypoglycemia. To convert plasma glucose values to mmol/L, multiply by 0.056.