Colonoscopy Prep Diet Guide

Reviewed for accuracy5 min read

Following the right diet in the days before your colonoscopy supports a successful, complete procedure.

A few days before

A low-residue diet, avoiding seeds, nuts, and whole grains, is often recommended by many practices.

The day before

Transitioning to clear liquids only — broth, clear juice, gelatin, and approved sports drinks — is standard the day before most procedures.

What to avoid

Red or purple-colored liquids are typically avoided, as they can be mistaken for blood during the procedure.

Key takeawayFollowing your doctor's specific prep diet timeline, transitioning from low-residue to clear liquids, supports a successful, complete colonoscopy.
Helpful next steps

Clear broth variety pack

Approved clear liquid diet options.

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This content is for general educational purposes only. Always follow your specific doctor's prep instructions, and discuss your screening options and risk factors with a healthcare provider.