We've released Evidence-based Keto: Your no-hype guide to the ketogenic diet, and
sale ends tonight
. Click here to learn more
Sperm Quality
ON SALE UNTIL TONIGHT: Evidence-based Keto
Unbiased truth on keto and long-term effects on health, safety, pre-existing conditions, losing weight, and more.
Learn the latest on keto
Human Effect Matrix
The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what supplements affect sperm quality
| 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.
|
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 |
|---|---|---|---|---|
|
|
Notable
|
High See all 5 studies |
Carnitine at 3g daily appears to increase sperm quality mostly related to sperm morphology; there are mixed effects on sperm motility
|
|
|
|
Minor
|
Very High See all 3 studies |
There appears to be an increase in seminal quality and oxidative parameters following 3-month ingestion of Mucuna pruriens, which is thought to be secondary to correcting the hypothalamic-pituitary-testes axis
|
|
|
|
Minor
|
Very High See all 4 studies |
Appears to enhance seminal quality (in a fairly general sense) but needs more studies against reference drugs to properly assess potency.
|
|
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
Everything you need to know about the keto diet
When we asked our users what they wanted us to cover, many of them mentioned the keto diet.
So we listened. We spent the year looking up the research on the ketogenic diet to help guide you in your journey.
With Evidence-based Keto, Examine.com gives you all the scientific research, but in understandable language with tons of informative infographics. No opinion, no bias, no conflict of interest.
If you’re interested in keto, this is a must-have unbiased source.