Tribulus terrestris has a long history of use as an herbal supplement treating conditions such as infertility and low poor sex drives. Athletes may also use this common plant, also known as puncture vine, to aid in building muscles and strength. As with any supplement, you should talk to your doctor before beginning a regimen using tribulus terrestris. Knowing the concerns associated with using the herb may help you avoid side effects.
Side Effects
Using tribulus terrestris does not appear to cause side effects. Pregnant women, however, should not use this supplement since tribulus terrestris can alter hormone levels, and this could affect the fetus. If you have a condition relating to hormones, such as breast cancer, do not use tribulus terrestris without first discussing the supplement with your doctor. Although users have not reported side effects, you could have an allergic reaction or other unwanted effects from the herb. Contact your doctor immediately if you notice any unusual symptoms after use.
Drug Tests
Athletes using tribulus terrestris should know of the controversy over whether using the supplement could result in a positive drug test. Manufacturers of the supplement may warn of positive drug tests while others state tribulus terrestris will not affect a drug screening test. In a 2007 study by researchers at the School of Exercise Science and Sports Management in New South Wales, Australia, findings showed that tribulus terrestris did not cause a positive drug test. If you have concerns regarding drug tests for athletic performances, talk with your doctor or coach before using this supplement.
Claims
Manufacturers of tribulus terrestris supplements may market the herb as a way to increase strength, body composition and endurance. In a 2000 study conducted at the University of Nebraska, researchers evaluated these claims in a group of men. The study participants using tribulus terrestris did show an improvement in strength on the leg press. However, the study showed that overall tribulus terrestris use did not improve performance or enhance body composition.
Considerations
Tribulus terrestris use does not come with a list of warnings and side effects, but if you plan to use this supplement, you should know the way it may or may not affect your body. Also, if you test positive for a drug test while using the herb, this could jeopardize your standing in your athletic or personal career. Talk with your doctor or coach to help you make an informed decision before using the supplement.
References
- University of Pittsburgh Medical Center: Tribulus Terrestris
- "Journal of Strength and Conditioning Research"; The Effect of Five Weeks of Tribulus Terrestris Supplementation on Muscle Strength and Body Composition During Preseason Training in Elite Rugby Players; S. Rogerson, et al.; May 2007
- "International Journal of Sport Nutrition and Exercise Metabolism"; The Effects of Tribulus Terrestris on Body Composition and Exercise Performance in Resistance-Trained Males; J. Antonio, et al.; June 2000
- Tribestan UK: A Summary on Clinical Studies of Tribestan
