Do we need to load carbohydrate before marathon? Is that save for us? Yes, you can do that. Marathon need more energy than usual exercise. Because it take long time and body need extra energy to power you through the race. Carb-loading is good for supply your extra enerty. But you should remember, don’t do it over, just consume enough amount of nonrefined carbs.
Michele S. Olson has tips about carbo-loading before marathon. She said eat moderate amounts of nonrefined carbs like fruits, veggies, and whole grains throughout the day at the day before the event. For a smaller energy boost, eat some fruit and whole-grain cereal with skim milk 3 hours before race.