If you're looking for a sugar-free energy drink, it's probably because you're worried about maintaining your health (as you should).
You wouldn't put crappy gasoline in an exotic sports car, so why would you fuel your body any differently?
That being said, we all need a pick-me-up once in a while, so if you're in the market for an energy drink, here's how to make sure you choose the healthiest option possible:
The FDA recommends no more than 400mg of caffeine a day for a healthy adult, around four cups per day (a standard 8oz serving of coffee has 95mg of caffeine.)
Energy drinks like Monster Redline are packed with caffeine, in some cases more than 300mg each. Consuming caffeine in excess can cause a range of problems like headaches, insomnia, anxiety, and the jitters, so choose a healthy energy drink with a sensible amount of caffeine.
You should also consider your caffeine tolerance, as coffee vets can probably handle more than someone who rarely/never drinks caffeine.
I like to have an energy drink with 100-200mg of caffeine per serving (EarlyBird has ~150mg, but you can add more or less powder to your shaker cup to adjust accordingly.)
Always look at your energy drink's sugar content.
Mainstream energy drinks are loaded with sugar which, like I said above, is not good for you. First of all, it'll spike your blood sugar levels followed by a crash, leaving you feeling like you have less energy, not more.
A healthy diet is one with minimal sugar intake, which is why EarlyBird doesn't have any added sugar. When looking for your next energy drink, choose one that's sugar-free, or that has as little sugar as possible.
Energy drinks like Red Bull usually have some extra ingredients like Taurine, an amino acid that combines well with caffeine to boost energy. Others even have B Vitamins that help your body convert food into energy.