Erections
Research analysis led by Kamal Patel.
All content reviewed by the Examine.com Team. Published: Jul 5, 2013
Last Updated:
All content reviewed by the Examine.com Team. Published: Jul 5, 2013
Last Updated:
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Human Effect Matrix
The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what supplements affect erections
| Grade | Level of Evidence [show legend] |
|---|---|
|
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.
|
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 |
|---|---|---|---|---|
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Minor
|
Very High See all 4 studies |
An improvement in erectile dysfunction is seen with 3g of Korean Red Ginseng (fermented panax ginseng, regular panax ginseng not as well tested) which is thought to be secondary to anti-fatigue effects and improved blood flow
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Minor
|
- See study |
Erections are increased following yohimbine ingestion which is thought to be a combination of alpha-2-adrenergic antagonism (enhancing relaxation of the penile tissue so engorgement of blood can ensure) and increasing blood pressure (which would increase the amount of force in an erection). However, may not be able to overcome organic erectile dysfunction associated with poor blood flow
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Minor
|
- See study |
Increased erectile function has been noted with CoQ10, but this may be secondary to reductions in symptoms of Peyronie's Disease
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