Effectiveness Rating for Zinc's Ability to Increase Testosterone

The effectiveness rating is a measure of how well zinc 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 Zinc to increase testosterone may lead to positive results.

Confidence Rating for Zinc'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 3 studies in the database on zinc; the confidence rating is 60. 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.


Title of Study
Effect of Zinc and Selenium Supplementation on Serum Testosterone and Plasma Lactate in Cyclist After an Exhaustive Exercise Bout
The effect of exhaustion exercise on thyroid hormones and testosterone levels of elite athletes receiving oral zinc
Effect of fatiguing bicycle exercise on thyroid hormone and testosterone levels in sedentary males supplemented with oral zinc