Which two nutrients are commonly emphasized around training to optimize glycogen replenishment and muscle recovery?

• A. Fats and fiber
• B. Vitamins and minerals
• C. Water and electrolytes
• D. Carbohydrates and protein

Answer: (D)

After training, the body focuses on restoring energy stores and repairing muscle tissue. Carbohydrates are the main fuel for quickly replenishing glycogen stores in muscles and the liver, especially when consumed soon after exercise and in adequate amounts. Protein supplies the amino acids needed to repair muscle fibers and support muscle protein synthesis; when eaten with carbohydrates, it also helps insulin release, which assists glucose uptake into muscles and speeds recovery. This combination—carbohydrates for glycogen replenishment and protein for repair and adaptation—is why those two nutrients are emphasized around workouts. Fats and fiber don’t directly drive rapid glycogen restoration, and vitamins/minerals, while essential for overall function, aren’t the primary drivers of glycogen replenishment. Hydration and electrolytes are important for performance and recovery but don’t replenish glycogen themselves.