i can approve sideeffects by consuming too much. i used to drink every morning 1 can,when i did 13-16 hours of work for a long period,and my liver started to hurt prettybad,plus when i got home i was more tired than before,this is a sideeffect too. But lets keep this topic ontopic,and open a new thread for agrguing about energydrinks. i cant find one :P