In order to determine the normal periprandial blood glucose values during gravidity, we studied 17 normal pregnant women, near term of gestation, in their homes using test strips and reflectometers. Results show an initial fasting level not higher than 80 mg/dl and not lower than 45 mg/dl. In all cases but one blood glucose levels were lower than 120 mg/dl, irrespective of when the measurements were taken. Insulin determinations permitted us to recognize low and high responders, although no differences could be found between them.