Soy Protein decrease testosterone

Does soy protein decrease testosterone?

Effectiveness Rating for Soy Protein's Ability to Decrease Testosterone

The effectiveness rating is a measure of how well soy protein is able to decrease testosterone. The overall rating for this claim is 1.8 out of 3. There is some research showing the supplement's ability to deliever on this particular claim is warranted. Using Soy Protein to decrease testosterone may lead to positive results.

Confidence Rating for Soy Protein's Ability to Decrease 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 4 studies in the database on soy protein; the confidence rating is 80. 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
Clinical and biological activity of soy protein powder supplementation in healthy male volunteers
The effects of soy and whey protein supplementation on acute hormonal reponses to resistance exercise in men
Clinical studies show no effects of soy protein or isoflavones on reproductive hormones in men: results of a meta-analysis
Soy protein intake by active young adult men raises plasma antioxidant capacity without altering plasma testosterone

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