158 mg caffeine in a power drink what does it equal to # of cups of coffee?!
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I saw your question and just about dropped over with the thought of that much caffeine being taken into the body at one time. I guess that would give you a real "high" from the caffeine and you'd have to watch out for the "crash" after having that much caffeine in your system (that is, of course, unless you are following it with another drink like that.
A 2 oz. double espresso has from 40 to 100 mg of caffeine, so this is a pretty potent energy drink. Healthy is another question . . it may not be the healthiest thing for you. So the answer is 2-4 double espressos. WOW!
Why are you drinking energy drinks in the first place? Need that quick burst of energy?
Look at something that might be healthier for you. Less calories, no caffiene, no sugar, no sodium; just good things for you and it's only 20 calories. It's called NuVitae.
Hope this helps.
1) caffeine - http://coffeetea.about.com/library/blcaffeine.htm
2) Nuvitae - www.ideaworthsharing.com/23696
3) Recorded product call: (206) 350-7075
4) See a doctor talk about it: www.bizbuz.tv/drbarry.html