Before a colonoscopy In addition to the colonoscopy prep drink that clears the bowels, a clear liquid diet is prescribed in the 24 hours leading up to the exam. This keeps the gastrointestinal tract free of any food, so the doctor can see clearly in the bowel region. To treat diarrhea or...
Tea with no milk or cream As an example, grape juice is permitted because it is transparent, though pigmented. Prior to a colonoscopy, though, your doctor may advise you not to have any drinks with a red or purple color. Their residue looks like blood and can make things difficult for y...