I replaced coffee and energy drinks with caffeine pills. Same (or better) results, no sugar. Question: do you think this guarana drink is more powerful than coffee? It's quite common to see guarana drinks (mostly soda) here in Brazil, but I don't see them as energy drinks.. To be honest, I feel as I'm lacking energy for everyday activities.. Do you or anyone know whether any of these scitec nutrition products (or whey protein, etc) could help regarding energy? Or it's just for building muscles?