eating on an ultra

[maddaddy]

Nuun tablets are ace for fending off cramps! For the longer stuff I've done, which is limited, its been energy bars/flapjacks or similar. Trek bars from that well known highstreet health food chain...who's name aludes me. Also the gels etc. Some people do recommend eating fairly normal stuff, sarnies, bagels, crisps etc.

Are Nuun tablets electrolytes? Do you have to put them in water or could you suck them?

PS thanks everyone else