The conclusion on these three ingredients falls in line with what we've previously found; there is v...read more
Does vitamin d3 increase testosterone?
The effectiveness rating is a measure of how well vitamin d3 is able to increase testosterone. The overall rating for this claim is 2 out of 3. There is some research showing the supplement's ability to deliever on this particular claim is warranted. Using Vitamin D3 to increase testosterone may lead to positive results.
The confidence rating is a mesure of how valid the effectiveness rating is. This rating is based on how many studies are included in the database on this topic.
There are 2 studies in the database on vitamin d3; the confidence rating is 40. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating.
|Dosage||Frequency||Daily Total||Effectiveness Rating of Dosage|
|Title of Study|
|Effect of Vitamin D Supplementation on Testosterone Levels in Men|
|Vitamin D supplementation and testosterone concentrations in male human subjects|