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Twice the caffeine of coffee — The energy bomb boosting brain and heart function

Phumlani S. by Phumlani S.
November 6, 2025
in Human Science
caffeine guarana

Credits: The Pulse In-House Edition

The Amazon has always been an interesting place. It has a plethora of different species and even a little red fruit that many people around the world know about. This little red fruit packs a punch. The seeds of this fruit are good for boosting brain and heart function.

This red fruit gives you twice the caffeine that coffee does

People in the Amazon have used this fruit for many years. It helps keep locals awake and alert on hunting trips and the like. It is now used in many energy drinks found at shops throughout the world. This fruit can help with your brain function and your heart. It is also a fruit that one should be a little wary of.

It does not give you an instant spike like coffee does. The caffeine in this fruit is mixed with plant compounds. The body takes it in much more slowly than coffee. The boost lasts longer. There is no sudden crash that comes with this kind of caffeine boost. It keeps you focused and can help your memory. Even physical stamina is improved by it.

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So, what is the little red fruit that has more caffeine than coffee?

You might have guessed it. The guarana. It is more than just caffeine. It has some of the same things you would find in tea and chocolate. Things like theobromine and theophylline, for example. These help with blood flow. This helps with oxygen, which feeds the muscles and your brain.

Experts have said guarana can help with learning and memory. Guarana has antioxidants that protect your brain. Guarana has natural stimulants that help with circulation and your metabolism. It does a lot of good for the body. It is good for the heart, but you should be careful with it.

Guarana is good, but caution should be used along with this fruit

Too much of anything can be bad for you. Guarana is good for you, but in small doses. It helps with circulation, and your heart and blood vessels also do well because of it. All that oxygen feeds your body. Too much of this fruit can be a problem. Doctors do say that the caffeine boost it gives can cause issues if you take too much of it.

Too much could lead to bad sleep, anxiety, or a racing heartbeat. You have to keep your use of guarana at a reasonable level. Don’t overdo things.  Caffeine overload is not good. Energy drinks do this when it comes to guarana extract. They put too much in their drinks sometimes. Things can get troublesome with that.

Guarana is more potent than caffeine, but can still be good for you

Medical experts have expressed their concerns about guarana being mixed into drinks with sugar and caffeine. They say that just amps things up. This is not good for your body. It can leave you dehydrated and get your heart racing. Some people have even fainted.

Small doses help the caffeine in guarana be absorbed slowly. Guarana is better when you have it on its own. A supplement, for example. No extras. If you push things too far, it may not go so well for you. A little red fruit from the Amazon could help raise your energy and focus if you take it correctly. Nature’s way is always best.

Everything in moderation, of course. You do not need to reach for that flashy can to get your energy boost. Not all sources of energy are good for you. Give it thought. Do some research. The health of your brain and heart is are important thing to consider, along with your energy intake.

Disclaimer: Our articles on food and nutrition are purely informative and do not constitute medical or dietary advice. We respect the guidelines of the Food and Drug Administration and follow a responsible editorial policy. Consult a healthcare professional or dietitian and remember that no superfood is a substitute for a varied and well-balanced diet.

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