Clear fluids (e.g. water, juices) and breast milk are digested in two to three hours. They do not interfere with acidity and amount of residual fluid appearing in the stomach after that period. Infants especially the younger ones are likely more relaxed when arriving to operating room if they have not been forced to fasting for a long period (Brady 2005, ABM 2012). However, the American Society of Anesthesia has stated that less than 4 hours period as a preoperative fasting period would not be advisable (ASA 2011).