Effectiveness Rating for 5-HTP's Ability to Improve Cognitive Ability

The effectiveness rating is a measure of how well 5-htp is able to improve cognitive ability. The overall rating for this claim is 1 out of 3. There is little if any research to warrant the use of 5-HTP to improve cognitive ability. Using 5-HTP to improve cognitive ability will probably not yeild any positive results and is likely a waste of money.

Confidence Rating for 5-HTP'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 5-htp; 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.

5-HTP Dose to Improve Cognitive Ability

Dosage Frequency Daily Total Effectiveness Rating of Dosage
50mg twice daily 100mg


Title of Study
Oral administration of 5‐hydroxytryptophan (5‐HTP) impairs decision making under ambiguity but not under risk: evidence from the Iowa Gambling Task