I would give him the nutri-cal in the morning when he wakes up, in the afternoon, before you leave to go anywhere and at night before bed. If he is having that many attacks I would keep a very close eye on him. Make sure he has food and water at all times until he is out of this stage also do not let him get overly excited or play to hard as this can also cause him to have Hypoglycemia attacks. How much does he weigh?