What nutrient gives you long-term energy? The complex guide
                                
                                
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                                    5 min read                                
                            
                                While carbohydrates are often considered the body's quickest fuel source, lipids (fats) are the most energy-efficient form of food, providing the densest source of stored calories for long-term use. However, a balance of macronutrients is key for truly sustained energy.