What is the longest nutrient to digest? Understanding Fat, Fiber, and Digestion
                                
                                
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                                    5 min read                                
                            
                                Fats are the slowest macronutrient to exit the stomach, a process that can take several hours. When considering what is the longest nutrient to digest, understanding the different digestive rates of fats, carbohydrates, and proteins is crucial for managing energy levels and satiety.