What is the ultimate goal of digestion?
                                
                                
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                                    4 min read                                
                            
                                Food takes an average of 24 to 72 hours to pass through the human digestive tract, a complex process driven by a single, fundamental purpose. This process is crucial to the question, what is the ultimate goal of digestion?, which is to extract and absorb nutrients to fuel the body's energy, growth, and repair.