The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what supplements affect seminal motility.
| Grade | Level of Evidence [show legend] |
|---|---|
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Robust research conducted with repeated double-blind clinical trials |
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Multiple studies where at least two are double-blind and placebo controlled |
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Single double-blind study or multiple cohort studies |
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Uncontrolled or observational studies only |
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Level of Evidence
?
The amount of high quality evidence. The more
evidence, the more we can trust the results.
|
Supplement |
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 |
|---|---|---|---|---|
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Minor
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Very High See all 3 studies |
Alongside improvements in all seminal parameters, ashwagandha is able to increase seminal motility as well; both are thought to underlie pro-fertility effects.
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Minor
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Very High See all 3 studies |
Requires more evidence to assess potency, but it does appear to reliably increase seminal motility
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Minor
|
- See study |
Sperm motility appears to be increased, with more efficacy in those with lower baseline motility and improvements averaging 44.4%
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