Ultrarunning Fueling Tips

By Toby Guillette • For Active.com

Ultrarunning is the ultimate physical and mental challenge for a runner. But all the training in the world can come undone if you don't hydrate and fuel properly, especially as you approach the higher miles.

In this video, ultra-distance adventure athlete Toby Guillette shares his strategies for what to eat or drink as you tackle your next ultrarun.

More: 15 Technical Tips for Trail Running