Protein shakes?

[Wuckoo]

I've heard that pure caffeine in pill form is more effective than Coffee... can't remember where I read it.

Caffeine reduces delayed onset muscle soreness, ratings of perceived exertion, improves focus etc..

It's a good PED.

Yeah in some areas it's illegal to take any caffeine substance before a fight.

[Butt stuff]

Caffeine is beneficial for boxing. It doesn't matter what the source is whether it's pills or coffee. I use coffee since it's more cost effective and tastes good.
Here's a link to a collection of it's effects and the scientific studies behind them.

http://examine.com/supplements/Caffeine/

I'll also add that creatine is very beneficial as well for exercise performance. If you're competing you want to stop using it a week or so before the fight since it causes water retention though.

nice thanks man