RCT: Single-day low-residue diet prior to colonoscopy demonstrates improved bowel preparation quality and patient tolerance over clear liquid diet 14 Jun, 2021 | 08:26h | UTC Single-Day Low-Residue Diet Prior to Colonoscopy Demonstrates Improved Bowel Preparation Quality and Patient Tolerance over Clear Liquid Diet: A Randomized, Single-Blinded, Dual-Center Trial – Digestive Diseases and Sciences