One bad thing about these energy drinks (especially fast-acting ones like the one you posted) is the fact that they can cause someone to "crash" a few hours later. I wouldn't recommend them. I'd opt for other protein drinks instead like Carnation or Boost.
Yeah, I do not want to take a risk. I prefer red bull or monster with no sugar and/or diet. It don't bother me at all. I also only drink it a several times.
