How long does it take to adjust to a vegan diet? Your timeline for transition
                                
                                
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                                    4 min read                                
                            
                                Research suggests that initial adjustments to a high-fiber vegan diet can begin within days, with more profound gut microbiome shifts potentially taking up to 16 weeks. So, how long does it take to adjust to a vegan diet? The answer varies significantly by individual, but understanding the general timeline can help manage expectations and smooth the process.