Can you drink milk 3 days before a colonoscopy? A Comprehensive Prep Guide
                                
                                
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                                    3 min read                                
                            
                                To ensure a clear view of the colon, doctors require patients to transition to a low-fiber diet starting three days before the procedure. The good news is that for most people, this dietary phase allows you to drink milk 3 days before a colonoscopy, as it is not a high-fiber item.