Nutritional strategies to enhance endurance during long-distance running include focusing on carbohydrate intake to ensure glycogen stores are maximized. Consuming easily digestible carbs before and during runs can maintain energy levels. Additionally, staying well-hydrated and replenishing electrolytes is important. Incorporating protein post-run can support muscle recovery. Experimenting with different fueling strategies during training can help identify the most effective options for your body, ensuring optimal performance during long runs.