Inclusion Criteria:  The inclusion criteria were patients aged 18-60 years ASA 1-2 who would undergo non-digestive elective surgery in Cipto Mangunkusumo Hospital Body mass index between 20-30 kg/m2  Exclusion Criteria:  patient who is not willing to enter the study patients with diabetes mellitus pregnancy abdominal distension intestinal motility disorders history of dyspepsia patients who do not receive the standard Cipto Mangunkusumo Hospital diet changes of the surgery schedule in which the patient is unable to do 8-hours fasting before surgery the patient who has an emergency in the perioperative period the patient was unable to consume the standard food provided