Attention

The ability to keep focus on chosen targets, the clinical lack of attention is ADD (or ADHD if hyperactivity exists); Attention and/or Focus may be affected by supplements listed on this page.


Research analysis by and verified by the Examine.com Research Team. Last updated on Apr 29, 2017.

Human Effect Matrix

The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what supplements affect attention

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 more 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
Bacopa monnieri
All comparative evidence is now gathered in our ​Supplement Goals Reference.
The evidence for each separate supplement is still freely available ​here.
Cocoa Extract  
Ginkgo biloba  
CDP-choline  
Centella asiatica  
D-Serine  
L-Carnitine  
Modafinil  
Nigella sativa  
Phosphatidylserine  
Pycnogenol  
Creatine  
Fish Oil  
Marijuana  
Melatonin  
Melissa officinalis  
Red Clover Extract  
Rhodiola Rosea  
S-Adenosyl Methionine  
Theanine  
Peppermint  
Pueraria lobata  
Nicotine