Which is the quickest source of energy for your body?
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                The human body stores only a limited amount of adenosine triphosphate (ATP), the true molecular energy currency, and it must be constantly and quickly regenerated. But beyond the cellular level, the macronutrient that provides the quickest source of energy is carbohydrates, particularly simple sugars.