Caffeine Level
Serving Size
1 gram
Caffeine Strength
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Guarana is a natural source of caffeine derived from the seeds of the Guarana Paullinia cupana plant, which is native to South America.

The native people in the Amazon region of South America have been using it for centuries as a way to boost energy, but this herb gained popularity in the west after it was added to soft drinks and energy drinks.

Guarana Seed's Caffeine

Guarana seeds contain 3.6% -5.8% caffeine by weight (src.), so if we take the average of that range (4.7%) then 1 gram (1000mg) of guarana seeds would contain on average 47mg of caffeine.

Guarana Extract

Guarana extract is a concentrated form of guarana caffeine. In this case guarana seeds are processed to remove the caffeine they contain.

Many guarana based products contain guarana extract and not whole or ground guarana seeds, which boosts the caffeine content.

Popular Guarana Based Supplements

Product (Guarana Type) serving size Caffeine
Gaurana Energizer (extract) 1 tablet 200mg
KAL Guarana (seed) 1 tablet 28mg
Swanson Guarana (seed) 1 capsule 30mg
GNC Guarana (extract) 1 capsule 90mg
Gaurana Max (extract) 2 capsules 200mg
Use guarana based products with caution especially those containing guarana extract. Keep these supplements out of the reach of children.

Where To Buy Guarana

Ingredients in Guarana

Guarana seeds or guarana seed extract.

How Does It Compare With Other Foods?

Caffeine per Item
200180160140 120100806040 200 Seed of Guarana No Doz Awake Chocolate Hershey's Special Dark Bars
Data Sources: Duke, J. CRC Handbook of Medicinal Herbs, CRC Press, 1985.