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Lee Swanson Research Update
Fenugreek Extract Shows Boost in Male Libido
March 2011
Daily supplements of an extract from fenugreek may enhance male libido with the maintenance of normal testosterone levels, say results of a double-blind, randomized, placebo-controlled study.
A formulation containing a standardized extract of Trigonella foenum-graecum and minerals was associated with an improvement in libido for 81% of the men in the study, and a 63% improvement in the "quality of sexual performance," compared with no such improvements in the placebo group, according to findings published in Phytotherapy Research.
The study used Gencor’s Testofen® ingredient and was conducted by scientists from Applied Science and Nutrition Pty Ltd, Clinical Trials, Brisbane and the University of Queensland.
The Australian researchers recruited 60 healthy men aged between 25 and 52, and randomly assigned them to receive 600 mg of Testofen per day or placebo for six weeks. None of the men had erectile dysfunction at the start of the study.
In addition to the reported improvements in libido and quality of sexual performance, the researchers noted that 66% of the men in the active intervention group reported improvements in recovery time, 82% reported improvements in general energy and 56% reported improvements in well-being.
It was concluded that Testofen demonstrated a significant positive effect on physiological aspects of libido and may assist to maintain normal healthy testosterone levels.
Commenting on the active ingredients and the mechanism, the researchers note that saponins are probably responsible for these physiological effects. "The mechanisms may be quite complex," they said.
Phytotherapy Research Published online ahead of print.
