Stay up to date on nutrition research and save over 30%
Become an Examine Member to access the latest research analysis. Get 200+ studies summarized across 25 different categories every month.
Becoming a Member also unlocks the Examine study database of 400+ supplements and their effects on 600+ health outcomes.
Save up to 50% during our Black Friday Sale!
Already a member? Click here to log in.Make informed decisions about your health
The Human Effect Matrix looks at human studies to tell you what supplements affect Motor Speed.Unlock the full Study Database with an Examine Membership. Get a 14-day free trial.
|Grade||Level of Evidence [show legend]|
|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.
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.
|Minor||Very High See 2 studies|
|-||Moderate See 2 studies|
|-||Very High See 2 studies|