What is the definition of a carbohydrate for Class 4?
                                
                                
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                                    4 min read                                
                            
                                Did you know your brain uses carbohydrates as its main source of fuel to help you learn and think? What is the definition of a carbohydrate for Class 4? Simply put, carbohydrates are the main source of energy your body uses to play, run, and grow strong.