Running ultramarathons requires a lot of calories and electrolytes. E-gel provides plenty of both. Last year, I completed 2-100 milers, 3-50 milers, 3 50ks, and 2 trail marathons; all of them fueled with e-Gel. At 54 years old, e-Gel gives me what I need to compete and the confidence that goes with it. Thanks for making such a fine product.