Expert: Dana Krempels, Ph.D. - 11/12/2007

Question
I have been told  that tribuluse is good for you   is this true.   thank you .......

Answer
Dear George,

This from our old pal, Wikipedia:

"Tribulus is a genus of plants found in many warm regions. The best-known member is T. terrestris (Puncture Vine), a widespread weed and also the source of a dietary supplement claimed to increase the body's natural testosterone levels and thereby improve male sexual performance and help build muscle. T. terrestris has consistently failed to increase testosterone levels controlled studies.[1][2][3] It has also failed to demonstrate strength-enhancing properties.[4]

Tribulus has been shown to enhance sexual behaviour in an animal model.[5] It appears to do so by stimulating androgen receptors in the brain."

The short answer is:  no one knows for sure.  But I'd be cautious about using any supplement that contains a hormone mimic, since these can have long-term side effects that are unpredictable.

Hope that helps.

Dana