How Long Does It Take for OptiFiber to Work?
                                
                                
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                                    4 min read                                
                            
                                Clinical studies show that the active ingredient in OptiFiber, Partially Hydrolyzed Guar Gum (PHGG), begins to have a short-term laxative effect within 48 to 72 hours, depending on individual sensitivity. Knowing how long does it take for OptiFiber to work can help you manage expectations for your digestive health.