Creatine? ok so a few guys at school have been talking about and using creatine, and honestly im realy curious. i looked around on the web and basically didnt find anything that had something bad to say. Has anyone used it? does it work? wut is your opinion on it? and the reply, all from the same guy. It is the most useless, hyped up, dangerous OTC supplement there is. I know guys who have had major complications from teh stuff after taking it or a few years. There is NO reason why you should need to take a supplement like that. Well balanced diet, with a possible natural protein supplement will do the trick. Creatine is the predecessor to Creatinine, a by-product of muscle metabolism. Sure, it may help your muscles grow like crazy for a bit (mainly because of water retention) but if you only knew how badly it was fucking up your kidneys......... Your kidneys can't possibly filter that much Creatinine. This can cause some serious interstitial kindney damage, which leads to things like Hypertension, various neuropathies, Cardiovascular diseases ie. heart attacks. And so many more things its not even funny. There's not nearly enough evidence/research out there to truely pin-point its total range of effects, thus taking it is like playing Russian Roulette. Those guys at your school who are taking it are morons. Putting something like that into you body because some muscle-head idiot at GNC said it made him big (note that idiot also has a grade 9 education) is insanity. Further, why do you need to build excessive muscle? there's few sports out there that reward out-right, immobile, brute strength. I'd rather be lean and strong any day. Plus you're in high school, your hormones are going nuts. Eat-right, follow a GOOD work out routine (none of this beach workout BS as in arms and chest and abs every other day). Mix in some ploymetrics, sprints, cardio etc. and by the time you're 20 you'll be a lean mean fighting machine. /End Rant. PS. If you didn't get the point, let me make it more clear. High school broads are idiots as well. Sure they'll let those huge guys nail em, but in the long run, those muscleheads are on the big-fat-skinny road to nowhere by the sounds of it. You only get one body, make sure you're careful with what you do with it. Let me say 2 things 1) Yes, I'm in Optometry School right now. Unfortunatly, what you don't know is that I did 3 years of honors physiology specifically on renal function (in case you don;t know what renal means, which I assume you don't, it means the kindey). 2) You seem to have little to contribute, little knowledge of bodily physiology so therefore how can you conclude that it cant harm your kindey? Ever ask a guy whose taken it long enough why he's been pissing blood? Hmmmm.........Kidney dysfunction.