Complete fasting: On a fast day under this Protocol no solid food may be eaten unless it is solid, medically prescribed part of a bedtime snack just before falling asleep (which must sometimes be to prevent nocturnal hypoglycaemia with injection of basal insulin before going to sleep) , Otherwise, the patient have ad libitum access to mineral water and unsweetened tea (possibly a fluid intake restriction should be considered for other diseases).

During a fasting day for this protocol, patients may calories in unlimited quantity and (with calorie-free dressing) Take carb food like tomatoes, cucumbers, lettuce to be, both during meal periods and in between, if desired.

A day of fasting started at 18.00 clock with a blood glucose test and is only started when on the same day no significant hypoglycemia (blood glucose <55 mg / dl) occurred, and when at 18.00 clock the blood sugar in the defined target range (70-180 mg / dl) is. Carried out during the fasting day standardized blood samples for measurement of plasma glucose with an appropriate laboratory method at 18.00, 20:00, 22:00, 12:00, 2:00, 4:00, 6:45, 9:00, 12:00, 14:00 and again at 18.00 clock. Because the determination of plasma glucose in the laboratory will take some time, is always for guidance and also measured with a fast measurement method, in order to treat at high levels of blood sugar with additional insulin correction, and to treat hypoglycaemia low blood sugar or to prevent hypoglycaemia.