Prospective Trial Of Osmolar Protocol Solution on Colonoscopy Outcomes and Patient Experience

Inclusion Criteria: * referred for a routine colonoscopy for cancer screening * Physician indicates a bowel preparation of split dose 2L PEG ± bisacodyl (iso-osmolar) solution Exclusion Criteria: * patients with colonic resection, inflammatory bowel disease; any condition that would preclude colonoscopy of the whole colon; * patients with lower gastrointestinal bleeding, patients with ileus, gastric retention, intestinal perforation, gastrointestinal obstruction; * patients with significant heart disease, impaired renal function, decompensated liver disease * patients who have diabetes * patients on opioid medications. * Patients with a corn allergy, or allergy to any ingredient in the complex CHO drink