Effectiveness Rating for Vitamin D3's Ability to 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.

Confidence Rating for Vitamin D3's Ability to Increase Testosterone

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.

Vitamin D3 Dose to Increase Testosterone

Dosage Frequency Daily Total Effectiveness Rating of Dosage
83mcg once daily 83mcg
50mcg once daily 50mcg
15mcg once daily 15mcg


Title of Study
Effect of Vitamin D Supplementation on Testosterone Levels in Men
Vitamin D supplementation and testosterone concentrations in male human subjects