formula 50 is a strange concept for a beverage. The grape-flavored drink's label reads, "inspired by today's most talked about artist, hottest record producer, and soon-to-be movie star, this not-so-hypnotic tonic contains (hint, hint) 50 percent of many of the important vitamins that you need every day." Now you won't likely find this rapper "in da club" drinking formula 50, but we have to hand it to Glaceau, this is a great tasting drink. The grape flavor is natural and not too-sweet. The conc