Why do you need a liquid-only diet before a colonoscopy?

This question was asked in Anthony, Indiana on 03/23/2012.

The doctor said that I should have a high-fiber or liquid-only diet before my colonoscopy exam. What is the reason behind this?

Doctors Answers (1)

Harsha Vittal, M.D.

Answered on: 3/23/2012

The goal of the prep is to have the cleanest colon possible. This is best achieved by a clear liquid diet prior to taking the prep.

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