In addition to caffeine and sugar, each drink has its own particular formula, often a mix of guarana, ginseng, and B-complex vitamins. |
Some alternatives to look for include yerba mate, guarana, kola nut and green tea extract. |
There's also a nasty looking chocolate and guarana bar and a free festival guide. |
About 10 years ago, the family started blending this fruit with banana and a little guarana. |
To maximize its effectiveness, it is often added to products that also contain caffeine, as well as guarana or mate. |
One recent animal study compared the effects of guarana to those of ginseng. |