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Botanical

Guarana

Guarana is an extract from the seeds of Paullinia cupana, a Brazilian plant, and contains caffeine and other bioactive compounds.

Also listed as Guaraná, Brazilian Cocoa, Paullinia Cupana, Paullinia cupana Kuntze

EnergyCognitionFitnessStress & MoodWeight Management

What it is studied for

The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.

Energy CrashesEnergyModerateBNo linked study
Physical EnergyEnergyModerateBNo linked study
Mental EnergyCognitionModerateBNo linked study
Focus And AttentionCognitionSmallBNo linked study
Endurance and staminaFitnessSmallBNo linked study
Mood SupportStress & MoodSmallCNo linked study
All 9 rated effectsGrouped by health goal, with the publications behind each rating

What is guarana?

Guarana is a Brazilian seed extract containing caffeine and other bioactive compounds. Researchers have tested whether this combination changes cognitive performance or mood beyond the effects associated with caffeine. 1

Why people take it

Energy24.8%
Cognition16.9%
Fitness15.3%
Weight Management14.1%
Essential Health8.3%
Stress & Mood6%

SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.

Questions people ask

Can it interfere with sleep?

Even 100 mg caffeine near bedtime can affect sleep in some adults. 2

What about pregnancy?

EFSA’s pregnancy benchmark is 200 mg caffeine daily from all sources, not 200 mg guarana. 2

Did guarana improve test accuracy?

The 2023 pooled analysis found no significant accuracy improvement. 3

Sources