is vitamin energy okay to give a 13 year old? and also, have you read "Ana's story?

ana's story by Jenna bush. do you think it is appropriate for a 13 year old? and she likes vitamin water and i was wondering if vitamin energy is okay?

energy drinks or energy boosters should not be given to younger kids. its not healthy. sometimes excessive amounts of caffeine can stunt growth of not only height, but organs.
i read Ana's story when I was 13. it wasn't that bad, from what I can remember lol that was 5 years ago.