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RADAR
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Tribulus is a purported testosterone booster that is contained within many sexual aid supplements. This plant extract is said to increase the production of the sex hormone LH, which will in turn help boost testosterone. Increased levels of this hormone may offer a variety of sexual benefits, some of which may include an increased libido, shorter recovery time between erections, increased stamina and enhanced physical performance. Furthermore, for some, increased testosterone may also offer some health benefits such as fortified bones, muscles and tissues, as well as increased energy levels.
However, while we do not feel that any male sexual aid is complete without a testosterone booster, we also do not believe that Tribulus alone may provide maximum results. Ultimately, this supplement is missing a key ingredient. It does not contain Yohimbe, which is said to work well with Tribulus. Yohimbe is thought to stimulate more blood flow throughout the penis, which may then lead to firmer, longer-lasting erections. Obviously, the sexual benefits, when paired with a testosterone booster, may be quite enticing. While this supplement does not contain this combination of ingredients, there are other products on the market that do.
Another
popularized in America by 1970's strong-man Jeffrey Petermann. Independent studies [6] have suggested that Tribulus terrestris extract slightly increases hormone levels, though leaving them in the normal range.
[edit] Medicinal uses
Some have compared the tonic properties of Tribulus terrestris to the effects of ginseng, but these occur due to entirely different mechanisms. It is also claimed that Tribulus terrestris increases testosterone by increasing gonadotropin-releasing hormone with gonadotropic adaptogen compound contained in Tribulus terrestris (GnRH) which in turn stimulates the production of LH and follicle-stimulating hormone (FSH). Testosterone, besides its role in muscle-building and raising fertility and libido, is known to have a positive effect on bone marrow activity (for red blood cell production) and the immune system.[citation needed]
Animal studies in rats, rabbits and primates have demonstrated that administration of Tribulus terrestris extract can produce statistically significant increases in levels of testosterone, dihydrotestosterone and dehydroepiandrosterone,[7] and produces effects suggestive of aphrodisiac activity.[8] On the other hand, one recent study found that T. terrestris caused no increase in testosterone or LH in young men,[9] and another found that a commercial supplement containing androstenedione and herbal extracts, including T. terrestris, was no more effective at raising testosterone levels than androstenedione alone.[10]
The active chemical in T. terrestris is likely to be protodioscin (PTN),[11] a cousin to DHEA. In a study with mice, Tribulus was shown to enhance mounting activity and erection better than testosterone cypionate.[citation needed] This however, is not as convincing as one might think. Although an OTC supplement outpacing a pharmaceutical is big news, testosterone cypionate is a synthetic ester of testosterone engineered for its longer activity. To be effective, its level must build up in the system of the animal using it. This process usually takes 2–3 weeks.National Institutes of Health, DailyMed: About DailyMed, retrieved on 15 November 2007 The proerectile aphrodisiac properties were concluded to likely be due to the release of nitric oxide from the nerve endings innervating the corpus cavernosum penis.
Adverse effects from supplementation with Tribulus terrestris are rare and tend to be insignificant. However, some users report an upset stomach, which can usually be counteracted by taking it with food.[6] Another rare side effect which has been reported is gynaecomastia,[12] which while potentially problematic does tend to support the purported androgenic-anabolic effects of this plant
RADAR
However, while we do not feel that any male sexual aid is complete without a testosterone booster, we also do not believe that Tribulus alone may provide maximum results. Ultimately, this supplement is missing a key ingredient. It does not contain Yohimbe, which is said to work well with Tribulus. Yohimbe is thought to stimulate more blood flow throughout the penis, which may then lead to firmer, longer-lasting erections. Obviously, the sexual benefits, when paired with a testosterone booster, may be quite enticing. While this supplement does not contain this combination of ingredients, there are other products on the market that do.
Another
popularized in America by 1970's strong-man Jeffrey Petermann. Independent studies [6] have suggested that Tribulus terrestris extract slightly increases hormone levels, though leaving them in the normal range.
[edit] Medicinal uses
Some have compared the tonic properties of Tribulus terrestris to the effects of ginseng, but these occur due to entirely different mechanisms. It is also claimed that Tribulus terrestris increases testosterone by increasing gonadotropin-releasing hormone with gonadotropic adaptogen compound contained in Tribulus terrestris (GnRH) which in turn stimulates the production of LH and follicle-stimulating hormone (FSH). Testosterone, besides its role in muscle-building and raising fertility and libido, is known to have a positive effect on bone marrow activity (for red blood cell production) and the immune system.[citation needed]
Animal studies in rats, rabbits and primates have demonstrated that administration of Tribulus terrestris extract can produce statistically significant increases in levels of testosterone, dihydrotestosterone and dehydroepiandrosterone,[7] and produces effects suggestive of aphrodisiac activity.[8] On the other hand, one recent study found that T. terrestris caused no increase in testosterone or LH in young men,[9] and another found that a commercial supplement containing androstenedione and herbal extracts, including T. terrestris, was no more effective at raising testosterone levels than androstenedione alone.[10]
The active chemical in T. terrestris is likely to be protodioscin (PTN),[11] a cousin to DHEA. In a study with mice, Tribulus was shown to enhance mounting activity and erection better than testosterone cypionate.[citation needed] This however, is not as convincing as one might think. Although an OTC supplement outpacing a pharmaceutical is big news, testosterone cypionate is a synthetic ester of testosterone engineered for its longer activity. To be effective, its level must build up in the system of the animal using it. This process usually takes 2–3 weeks.National Institutes of Health, DailyMed: About DailyMed, retrieved on 15 November 2007 The proerectile aphrodisiac properties were concluded to likely be due to the release of nitric oxide from the nerve endings innervating the corpus cavernosum penis.
Adverse effects from supplementation with Tribulus terrestris are rare and tend to be insignificant. However, some users report an upset stomach, which can usually be counteracted by taking it with food.[6] Another rare side effect which has been reported is gynaecomastia,[12] which while potentially problematic does tend to support the purported androgenic-anabolic effects of this plant
RADAR
