Effectiveness Rating for Guarana's Ability to Improve Cognitive Ability

The effectiveness rating is a measure of how well guarana is able to improve cognitive ability. The overall rating for this claim is 2 out of 3. There is some research showing the supplement's ability to deliever on this particular claim is warranted. Using Guarana to improve cognitive ability may lead to positive results.

Confidence Rating for Guarana's Ability to Improve Cognitive Ability

The confidence rating is a mesure of how valid the effectiveness rating is. This rating is based on how many studies are included in the database on this topic.

There is one study in the database on guarana; the confidence rating is 20. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating.

Guarana Dose to Improve Cognitive Ability

Dosage Frequency Daily Total Effectiveness Rating of Dosage
222mg once daily 222mg


Title of Study
Improved cognitive performance and mental fatigue following a multi-vitamin and mineral supplement with added guaranĂ¡ (Paullinia cupana)