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Processing Speed

Kamal
Research analysis lead by Kamal Patel
All content reviewed by Examine.com Team. Published:
Last Updated:

Summary of Processing Speed

Primary Information, Benefits, Effects, and Important Facts

Scientific Information on Processing Speed


Human Effect Matrix

The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what supplements affect processing speed
Grade Level of Evidence
Robust research conducted with repeated double-blind clinical trials
Multiple studies where at least two are double-blind and placebo controlled
Single double-blind study or multiple cohort studies
Uncontrolled or observational studies only
Level of Evidence
? The amount of high quality evidence. The mo re evidence, the more we can trust the results.
Outcome Magnitude of effect
? The direction and size of the supplement's impact on each outcome. Some supplements can have an increasing effect, others have a decreasing effect, and others have no effect.
Consistency of research results
? Scientific research does not always agree. HIGH or VERY HIGH means that most of the scientific research agrees.
Notes
grade-c Coconut Oil Minor - See study
Study was unable to properly assess coconut oil as it was used as an active control; some benefit appears apparent relative to fish oil.
grade-c Ginkgo biloba Minor Moderate See 2 studies
In older individuals, there appears to be an increase in processing speed without a sacrifice in accuracy
grade-c Melissa officinalis Minor - See study
A decrease in processing speed appears to occur following lemon balm ingestion, which may be related to the sedation effects
grade-c Nigella sativa Minor - See study
Trail making test time in older adult men appears to be reduced modestly with daily supplementation of nigella seed extract
grade-c Phosphatidylserine  
grade-c Modafinil  
grade-d Peppermint  

All comparative evidence is now gathered in our ​A-to-Z Supplement Reference.

The evidence for each separate supplement is still freely available ​here.