Boron
One 8-man study says yes. The only placebo trial says no.
Grade B: Some human proof
Small, early or mixed results in people.
The grade is for the use people talk about, not for every use. Filed under: Testosterone boosters, over the counter.
How it works
A trace mineral found in fruit, nuts and vegetables.
How it was given in studies
By mouth. In the trials people swallowed it as a capsule, tablet, powder or drink.
This is what the studies did. It is not a how-to.
What studies saw
In 8 men with no control group, free testosterone rose after a week. A 7-week placebo-controlled trial in 19 bodybuilders found no effect on testosterone, lean mass or strength.
The trade-off
The positive result rests on 8 men. We found no pooled analysis.
When it showed up, in studies
The only placebo-controlled trial found no change over 7 weeks.
Sources
Put this grade on your site
Copy the line below. The badge links back to this page, so readers can check the sources. It grades the compound in studies. It does not rate any product or seller.
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Keep going
We show what studies found. We never tell you what to take. Doses vary by study. Check the sources and talk to a doctor.