Study Comparing the Quality of Colon Cleanliness With Prepackaged LRD (Low-residue Diet) vs. Guided (POG).

Inclusion Criteria: * Patient of one of the investigators for total colonoscopy (no prior colonic surgery); * Patient aged 18 years or older; * Patient classified as ASA 1, ASA 2, or ASA 3; * Not participating in any other current clinical trial; * Free, informed, and signed consent; * Patient affiliated with or a beneficiary of a social security scheme, according to Article L.1124-1 of the French Public Health Code; Exclusion Criteria: * Patient taking major psychotropic medications; * Patient with uncontrolled diabetes; * Patient with coagulation abnormalities preventing polypectomy: PT \<50%, Platelets \<50,000/mm³, current effective anticoagulation therapy (clopidogrel, prasugrel, or ticagrelor); * Patient referred for removal of a known polyp; * Chronic inflammatory bowel disease; * Known colonic stenosis; * Diverticulitis of less than 6 weeks duration; * Pregnant, parturient, or breastfeeding woman; * Patient deprived of liberty by administrative or judicial order, or under guardianship or limited legal protection; * Patient unable to understand the objectives and constraints of the study.