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Department of Metabolism, The Montreal General Hospital, Montreal, Canada
Blood sugar time curves were obtained at 1-minute intervals following ingestion of sucrose, in order to determine the rapidity with which this food is available as a source of energy, using the increase of blood sugar as the indication of absorption from the alimentary tract.
Of the ten experiments reported here, a definite increase of blood sugar was noted within 1 minute in two cases, within 2 minutes in two cases, within 3 minutes in three cases, within 4 minutes in two cases and within 5 minutes in the remaining case. "Emotional" hyperglycaemia was excluded as a possible cause of the increase of sugar noted in three experiments.