What Color Liquids Not to Drink Before a Colonoscopy
                                
                                
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                                    3 min read                                
                            
                                According to the American Cancer Society, a clear and well-prepared colon is critical for a successful colonoscopy. To achieve this, it is essential to follow a strict clear liquid diet and understand what color liquids not to drink before a colonoscopy, as some dyes can interfere with the examination.