How many calories should I eat during a marathon?
                                
                                
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                                    4 min read                                
                            
                                The average marathon runner burns between 2,200 and 3,200 calories during the 26.2-mile race, a rate far exceeding the body's absorption capacity. To avoid depleting your energy reserves and 'hitting the wall,' it is crucial to understand how many calories should I eat during a marathon to sustain performance.