To prepare for a colonoscopy, you may need to avoid fiber in the days leading up to your appointment and follow a clear liquid diet beginning the day before. Preparation also involves taking ...

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Medically reviewed by Renee Nilan, MD A clear liquid diet consists of liquids such as water, clear broth, and apple juice. These liquids are considered "clear" because they do not have any pulp, bits ...

A successful colonoscopy depends on how well the colon is cleaned out before the procedure. The prep involves taking specific laxatives at designated times and a clear liquid or low residue diet.

It will also be important to eat a low-fiber diet in the days leading up to a colonoscopy, a clear liquid diet the day before, and stop all liquids several hours before the appointment.

a low-residue diet the day before a colonoscopy seems to offer greater benefits for patients and is recommended for outpatient procedures. However, inpatient procedures use a clear liquid diet to ...