How bad would 1 can of an energy drink (e.g. Monster, Red Bull) be to teens and preteens?!
Energy drinks are just plain bad for you. Just a sugar/caffiene rush. Drink tea, as that is very good for you and has caffeine. Also, energy drinks oftentimes contain Phenylananine, which is bad for you. However, once in awhile won't hurt, don't make it a daily ritual.
You will be fine drinking one energy drink a month. Honestly you will be fine.