Guarana

The overall rating for guarana is 2 out of 3 meaning there is some evidence that this supplement does some (not all) of what it claims. Using this supplement may lead to some improvements.

1. Simple Report
2. Detailed Report
3. Overall Effectiveness Rating
4. Research Rating
5. Products Containing Guarana
6. Claim Ratings
7. Dosing
8. References

• Supplement: Guarana
• Supplement Category: plant and food extracts
• Number of Products Containing Guarana: 149
• Effectiveness Rating: 2 out of 3
• Research Rating: 20 (above 80 indicates sufficient research)
• Number of Studies: 1
• Number of Claims: 1
• Effective Dosage Range: 222 milligrams per day

Overall Effectiveness Rating

The overall effectiveness rating for guarana is 2 out of 3. This rating means the evidence is mixed on the supplement's ability to deliver positive results. While some of the research supports its use, other evidence does not. Using this supplement may lead to positive results. Note, this effectiveness rating is for guarana as a whole; there are also individual ratings for the claims below.

Read more: What is the effectiveness rating?

Research Rating for Guarana

There is one study in the database on guarana; the research 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. Note, this research rating is for guarana as a whole; there are also individual ratings for the claims below.

Read more: What is the research rating?

Products Containing Guarana

Products Names	Amount of Guarana
Therm	300mg
Down Size Black	Amount not listed.
Animal Energy	Amount not listed.
Kissed	Amount not listed.
X-Cite	50mg
Full list of all 149 products containing Guarana.

Claim Ratings

The overall ratings above are an average of the individual claim ratings below. Individual claims may have higher or lower ratings compared to the supplement's overall rating. For example, some supplements may have excellent backing for one claim, but be completely useless for another. Click on a claim below for more information.

Mental Health Claims	Effectiveness Rating	Research Rating
improve cognitive ability

Dosing

The Supplement Database includes 1 studies on guarana dosing. These studies indicate an effective dose is 222 milligrams per day. For a more detailed dosing analysis visit: Supplement Dosing for Guarana.

References

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