Have you not heard of it? All of the energy drinks use guarana, a natural form of caffeine. It comes from a plant in the Amazon. Guarana products are really, really popular in Brazil. Did I mention "really?"
I like guarana because it is an easy-to-take form of caffeine. At the end of the day... or rather, the beginning... it is still just caffeine. Not better for you than any other form; just different. So they say.
I bought my guarana at Whole Foods. Each tablet contains 900mg of guarana extract, which factors out to about 200mg of caffeine. Or two cups of coffee. So they say. Here's a caffeine comparison list.
The warning label says not to take caffeine if you are nursing.
So I really *shouldn't* take it at work! ;D
Once upon a blog, I quit drinking coffee and all caffeine products. But it only made me more vexed. So now I drink coffee, and take the occasional energy drink, and/or guarana. It works for me. Really, I am not a purist.
I'm not in a race to lose weight. It's challenging, but it's not a competition.
It's all good. Everything in moderation, my little ankle-biters! It's all good.