Evidence supporting the use of: Maca
For the health condition: Infertility

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Synopsis

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

Maca (Lepidium meyenii) has a long history of traditional use in the Andes, particularly in Peru, where it has been consumed for centuries as a food and medicinal plant. Traditionally, maca is believed to enhance fertility and improve sexual function in both men and women. Historical records and ethnobotanical surveys indicate that indigenous populations have used maca root to boost libido, improve energy, and support reproductive health, particularly in high-altitude environments where fertility rates may be affected by environmental stressors.

Scientific studies investigating maca's effects on fertility are limited and of varying quality. Some small clinical trials and animal studies have suggested that maca may improve semen quality and increase libido in men, but the evidence remains preliminary. For example, a few randomized controlled trials have found modest improvements in seminal volume, sperm count, and motility after maca supplementation, while others have not shown significant effects. In women, evidence is even more scarce, with most claims based on anecdotal or traditional reports rather than rigorous research.

Overall, while maca is widely promoted for fertility and traditional use is well-documented, scientific validation is limited and does not robustly confirm its efficacy for treating infertility. Thus, its use is primarily justified by tradition, and the strength of evidence is rated as 2 out of 5.

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