When it comes to boosting endurance and energy for physical activity, especially before an athletic event, carb loading is a popular nutritional strategy. But like any diet plan, it has both benefits and drawbacks. Whether you're a recreational gym-goer or training for a marathon, understanding carb loading can help you determine whether it aligns with your fitness goals. What Is Carb Loading? Carbohydrate loading , commonly referred to as carb loading, is the practice of increasing carbohydrate intake for several days before a high-endurance event, such as a long-distance run, triathlon, or cycling race. The goal is to maximize the glycogen stores in your muscles and liver. Glycogen is your body’s preferred energy source during prolonged or intense exercise, and having more of it stored can delay fatigue and improve performance. There are two common approaches to carb loading: Traditional method (classic): Deplete carbs for a few days while training hard, followed by 2–3...