Low Residue Diet During 3 Days vs 1 Day Prior Colonoscopy

Colonoscopy is the gold-standard for the evaluation of the colorectal mucosa. Colonoscopy quality indicators are the adenoma detection rate, the rate of cecal intubation and the bowel preparation.
The role of diet in preparing for colonoscopy is not fully established. Currently there is not enough evidence available to choice between 3 days of low residue diet versus 1 day.
The research hypothesis is that the low residue diet offers a non-inferior bowel preparation and an improved tolerance.