I bought zipfizz, the energy drink...?!
Answers: and i have a swimming endurance test tomorrow. Should i drink at an hour before for it to take in affect?
The biggest benefit of Zipfizz is the amazing amount of B12 that it provides. (Over 41,000% of recommended daily value) The B vitamins will 'perk you up' and make you more aware as well as help you focus. I typically drink a Zipfizz about a half hour before certification exams or any major testing.
For a swimming endurance I'm not sure how much it will help you perform as much as keep you focused. An hour will be plenty time for you to feel the effects though. Of course, as I'm sure you already know, be sure to be properly hydrated before your test. Best of luck!