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Tribulus terrestris is a vine-like plant growing in subtropical climates. Bulgarian Tribulus terrestris is the type that is typically used in dietary supplements. Typical uses of this Bulgarian Tribulus terrestris are to promote energy, a healthy libido, and increased muscle mass.

An additional benefit of Bulgarian Tribulus terrestris is that it may have hypoglycemic (blood sugar lowering) effects. This makes Bulgarian Tribulus terrestris of benefit to anyone who is looking to keep their blood glucose levels under control. Hypoglycemic agents are of use to athletes as well, as they shuttle ingested carbohydrates to be stored in muscle tissue as glycogen rather than to be stored as body fat. Hypoglycemic agents can produce gains in muscle tissue, losses in body fat, and increased strength.

How significant the effects of Bulgarian Tribulus terrestris are on blood sugar levels and carbohydrate partitioning is debatable. More research really needs to be done before a conclusion can be reached about the effectiveness of Bulgarian Tribulus terrestris as a hypoglcemic agent, and there are currently better options available for blood sugar control.

To learn more about Bulgarian Tribulus terrestris, click here.


1. Li M, Qu W, Wang Y, Wan H, & Tian C. (2002). [Hypoglycemic effect of saponin from Tribulus terrestris]. Zhong Yao Cai = Zhongyaocai = Journal of Chinese Medicinal Materials. 25(6), 420-2.

2. Li M, Qu W, Chu S, Wang H, Tian C, & Tu M. (2001). [Effect of the decoction of tribulus terrestris on mice gluconeogenesis]. Zhong Yao Cai = Zhongyaocai = Journal of Chinese Medicinal Materials. 24(8), 586-8.

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