When I was doing research for my book, “Are You A Monster or a Rock Star: A Guide to Energy Drinks-How They Work, Why They Work, How to Use Them Safely”, I was disappointed over learning what guarana does.
Book Excerpt of the Week

Everything guarana can do, caffeine can do better.
Guarana is a natural source of caffeine, and many time getting caffeine from a natural source is preferable. We’ve reviewed a few energy drinks with guarana.
But unlike green tea extract, guarana doesn’t come with its own unique set of benefits.
- Guarana is supposed to increase fat metabolism. So does caffeine, and a caffeine-free guarana extract didn’t show the same fat-metabolism effects.
- Guarana is supposed to improve mood and concentration, so does caffeine. See [How do Caffeine Theanine Interactions Affect Mood and Attention? and the video below:
Stay tuned for next week’s book excerpt as we continue our page-by-page exploration through the Energy Drink Guide (now on Audible!!!).
Get your copy of MY BOOK: “Are You a Monster or a Rock Star: A Guide to Energy Drinks — How They Work, Why They Work, How to Use Them Safely”
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Yes, there’s caffeine in green tea so you COULD SAY they “coexist”, but sometimes the health benefits of caffeine (by itself) counteract the benefits of green tea (by itself).![Caffeine as a Gym Partner [GreenEyedGuide on Avitae Blog]](https://i0.wp.com/greeneyedguide.com/wp-content/uploads/2017/09/avitae_8933_email_august_1200x450_1.jpg?resize=1200%2C450&ssl=1)

![Top 10 Facts You Need to Know About Caffeine [GreenEyedGuide on Avitae Blog]](https://i0.wp.com/greeneyedguide.com/wp-content/uploads/2017/09/avitae_8933_email_sept_1200x450_1.png?resize=1200%2C450&ssl=1)

