ambivalent comment

No superhuman here. I'm barely limping through my so-called marathon “training.” You'd be surprised how far you could go if you were asked to, I think. But here's what I know about fuel while running: First, get a water bottle belt. The ones with a single larger bottle are better than the ones w/a bunch of small bottles b/c the one bottle is much easier to fill. I have this one and I've found it works quite well for about 5 miles or less. It also has a pocket in which you can put snacks. I recommend Gu. It's like eating frosting, which might sound not great (I love frosting!) but you can suck it down easily while running and it gets absorbed by your body and converted to energy pretty fast. It's basically just sugar and carbs so you can also try any other energy bar or candy type thing that will give you those things. As the Gu folks recommend, you'll probably feel pretty fine if you eat something about every 40-45 minutes of running. These are the things I have been told and they have worked for me. I don't really recommend running, though -- it's really bad for your knees and back. ;-)