How Many Calories Should a 14-Year-Old Runner Eat?
                                
                                
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                                    4 min read                                
                            
                                Active teenage boys generally need between 2,600 and 3,200 calories a day, while active teenage girls may require 2,200 to 2,400 calories daily, according to the Academy of Nutrition and Dietetics. For a 14-year-old runner, these numbers represent a baseline that must be adjusted based on training volume, intensity, and individual growth.