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.