Evidence supporting the use of: Horny Goat Weed
For the body system: Testes

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Horny Goat Weed (Epimedium species) has been used in traditional Chinese medicine for centuries, primarily as an aphrodisiac and to support male reproductive health, which includes the testes. The herb contains icariin, a compound believed to enhance libido and support erectile function by influencing nitric oxide pathways and increasing blood flow. Historically, Horny Goat Weed was prescribed for symptoms such as reduced sexual desire, fatigue, and age-related reproductive decline. However, while animal studies and limited human research suggest that icariin may have some positive effects on testicular function—such as increasing testosterone levels and improving sperm quality—the evidence is preliminary and not robust. Most clinical trials are small or lack rigorous controls, and comprehensive studies in humans are lacking. Therefore, although tradition strongly supports its use for male reproductive health, including the testes, scientific validation remains limited. Current consensus is that while Horny Goat Weed may offer some benefit, it should not be relied upon as a primary therapy for testicular health without further research.

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