Originally posted by: deathkoba
The stuff can kill ya if you drink it often enough. There's at least 10x more caffeine per can than 2 strong cups of coffee. Not only that but it's got high levels of sodium. My sister's roommate is sponsored by Redbull and she tells me not to drink more than a can a day unless I want a heart attack. I can totally feel that stuff messing with my heartrate.
The "average" cup of coffee or shot of espresso has around 100mg of caffeine. You're saying that a can of redbull has at least 2000mg? Unfortunately, according to their website, it's only 80mg / can. I can't say anything about the effects of taurine and other crap in there, but caffeine-wise it's pretty tame.
Edit: Having said that, I have to agree w/ CRXican about it affecting my heart rate... I stick to coffee nowadays.