Caffeine Levels

per gram
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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 sizeCaffeine
Gaurana Energizer (extract)1 tablet200mg
KAL Guarana (seed)1 tablet28mg
Swanson Guarana (seed)1 capsule30mg
GNC Guarana (extract)1 capsule90mg
Gaurana Max (extract)2 capsules200mg
Use guarana based products with caution especially those containing guarana extract. Keep these supplements out of the reach of children.

Where To Buy Guarana

Source Naturals Guarana Energizer, Increases Stamina and Motivation,100 Tablets

Price: $13.29 $13.29Available from Amazon / Source Naturals

Guarana Antarctica 350ml (Pack of 12)

Price: $16.95 $10.77Available from Amazon / GuaranĂ¡ Antarctica

Solaray Guarana Capsules, 400 mg, 100 Count

Price: $9.79 $5.18Available from Amazon / Solaray

Antarctica - Soda Guarana - 11.83 Fl. Oz. (PACK OF 12) | GuaranĂ¡ - 350ml

Price: $23.99 $11.24Available from Amazon / Brex America

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 Foosh Energy Mints Hershey's Special Dark Bars


Duke, J. CRC Handbook of Medicinal Herbs, CRC Press, 1985.