We are pumped to share one of our fave stories from Shape here on FitSugar.
With marathon season almost at its height, many runners are putting in those final long runs, tapering, and setting their sights on the finish line. And while the miles matter, what you put (or don't put) in your belly can be just as important.
Whether you're running your first 26.2 or are looking to take home a PR, Susan Kleiner, Ph.D., R.D., bestselling author of numerous books including Power Eating, has advice to help your marathon be your best.
1. Let thirst be your guide.
According to Kleiner, nothing beats the impact of hydration on performance. She recommends drinking a sports drink with electrolytes to replace fluids.
"If you are racing just to participate and finish, then drink when you are thirsty throughout the event," she says. "If you are racing to win or achieve your personal record, then have a structured fluid replacement plan during the race and be sure to stick with it."
See more tips for eating on marathon day after the break!