I dunno if I'm reading things right.... but it looks like energy drinks don't have THAT much more caffeine than regular coffee?
I have a can here and it says that 500ml has 155mg, (about 78mg per 250ml)
and according to Google a standard 250ml cup of coffee has about 63mg.
By the way people rave on about how strong energy drinks are, I'd think that they would have a lot more caffeine in them.
But it's not even double.
Not even x1.5 lol