Why Swimmers Eat a Lot of Carbs: The Ultimate Fuel
                                
                                
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                                    5 min read                                
                            
                                Competitive swimmers can burn up to 5,000 calories in just four hours of intense training, making energy replenishment critical for performance. This staggering energy expenditure explains precisely why swimmers eat a lot of carbs, as carbohydrates serve as the body's primary and most efficient fuel source.