"Gu" and Caffeine

So some runners carry pouches of "Gu" which is exactly that it sounds like. This Robin Williams blubber substance is like gel power. It is flavored (every brand has a vanilla and chocolate) and infused with caffeine. However, chances are you do not need this extra boost if you eat correctly before a race or if the distance is lower than a half-marathon.

To take them, slurp them out of the pod and drink water with them. When you're eating them mid-race just eat them like a go-gurt but be careful not to swallow air with them.

Flavor recommendations? I do not use Gu because I never feel like I need them but you can count on chocolate and vanilla usually.

When I race I sometimes use "Shot Bloks" which are by the same company that makes Clif bars. I recommend black cherry or tropical punch.