Does Tribulus Terrestris Work?

July 17th, 2007 by Paul Johnson

Tribulus Terrestris is a controversial supplement for the last few years in the bodybuilding community.

What is Tribulus Terrestris?

Tribulus Terrestris is a natural herb used for previous medicinal purposes. The Chinese used it for centuries to treat premature ejaculation, headaches, and other ailments.

Tribulus Terrestris effects:

One of the main benefits tribulus is claimed to have, is it's role in increasing testosterone. It is claimed that it directly increases gonadotropin-releasing hormone, which ultimately leads to an increase in testosterone.

While there is a few conflicting studies on animals, most legitimate studies show Tribulus Terrestris is a junk supplement. Most bodybuilders also agree from experience, that Tribulus Terrestris does not help muscle gains. A study was recently published J Strength Cond Res. 2007 May;21(2):348-53. where athletes took tribulus terrestris for 5 weeks. Not only was there no difference in muscle gains or in testosterone/epitestosterone ratio. Another study on humans J Ethnopharmacol. 2005 Oct 3;101(1-3):319-23. also showed no hormonal change.

Sexual effects of Tribulus Terrestris:

Tribulus Terrestris probably does not increase muscle gains, but it has been long used for it's aphrodisiac properties in China and India for centuries. One study done on rabbits Ann Acad Med Singapore. 2000 Jan;29(1):22-6 concluded that the release of nitric oxide (the same thing viagra does) in the body may lead to this aphrodisiac effect. Another study done on rats Life Sci. 2002 Aug 9;71(12):1385-96 showed an increase in sexual activity resulting from tribulus Terrestris.

  1. Mark P on January 19th, 2010