top of page

Human Studies

Unspecified Colors


1. Honma A, Fujiwara Y, Takei S, Kino T. The improvements of daily fatigue in women following the intake of maca (Lepidium meyenii) extract containing benzyl glucosinolate. Functional Foods in Health and Disease.2022;12(4):175-187. doi:

2. Alcalde AM, Rabasa J. Does Lepidium meyenii (Maca) improve seminal quality?. Andrologia. 2020;52(10):e13755. doi:10.1111/and.13755

3. Takewaka T and Hara K. Clinical effect of oral administration of maca (Lepidium meyenii) extract on Japanese peri-menopausal women subjects: A randomized, double-blind, placebo-controlled study. Int J. Biomed Sci. 2019; 15(1): 11-18.

4. Stojanovska L, Law C, Lai B, et al. Maca reduces blood pressure and depression, in a pilot study in postmenopausal women. Climacteric. 2015;18(1):69-78. doi:10.3109/13697137.2014.929649

5. Poveda, C., Rodriguez, R., Chu, E.E., Aparicio, L.E., Gonzales, I.G., Moreno, C.J., 2013. A placebo-controlled double-blind randomized trial of the effect of oral supplementation with spermotrend, maca extract (Lepidium meyenii) or l-carnitine in semen parameters of infertile men. In: Proceedings of the International Federation of Fertility Societies 21st World Congress on Fertility and Sterility and the 69th Annual Meeting of the American Society for Reproductive Medicine. IFFS-ASRM, September 2013, Boston, Massachusetts, United States, p. S440.

6. Gonzales GF, Gasco M, Lozada-Requena I. Role of maca (Lepidium meyenii) consumption on serum interleukin-6 levels and health status in populations living in the Peruvian Central Andes over 4000 m of altitude. Plant Foods Hum Nutr. 2013;68(4):347-351. doi:10.1007/s11130-013-0378-5

7. Srikugan L, Sankaralingam A, McGowan B. First case report of testosterone assay-interference in a female taking maca (Lepidium meyenii). BMJ Case Rep. 2011;2011:bcr0120113781. Published 2011 Mar 25. doi:10.1136/bcr.01.2011.3781

8. Quelca Tancara B, Solares Espinoza M, Cortez J, Velez G, Salcedo Y, Salinas AM, Carvajal R. Effect of the Lepidium meyenii (Maca) on the spermatogenesis and the spermatic quality of subjects with diagnosis of infertility: study of cases. Biofarbo. 2010 Dec;18:61.

9. Zenico T, Cicero AF, Valmorri L, Mercuriali M, Bercovich E. Subjective effects of Lepidium meyenii (Maca) extract on well-being and sexual performances in patients with mild erectile dysfunction: a randomised, double-blind clinical trial. Andrologia. 2009;41(2):95-99. doi:10.1111/j.1439-0272.2008.00892.x

10. Stone M, Ibarra A, Roller M, Zangara A, Stevenson E. A pilot investigation into the effect of maca supplementation on physical activity and sexual desire in sportsmen. J Ethnopharmacol. 2009;126(3):574-576. doi:10.1016/j.jep.2009.09.012

11. Brooks NA, Wilcox G, Walker KZ, Ashton JF, Cox MB, Stojanovska L. Beneficial effects of Lepidium meyenii (Maca) on psychological symptoms and measures of sexual dysfunction in postmenopausal women are not related to estrogen or androgen content. Menopause. 2008;15(6):1157-1162. doi:10.1097/gme.0b013e3181732953

12. Dording CM, Fisher L, Papakostas G, et al. A double-blind, randomized, pilot dose-finding study of maca root (L. meyenii) for the management of SSRI-induced sexual dysfunction. CNS Neurosci Ther. 2008;14(3):182-191. doi:10.1111/j.1755-5949.2008.00052.x

13. Gonzales GF, Córdova A, Vega K, Chung A, Villena A, Góñez C. Effect of Lepidium meyenii (Maca), a root with aphrodisiac and fertility-enhancing properties, on serum reproductive hormone levels in adult healthy men. J Endocrinol. 2003;176(1):163-168. doi:10.1677/joe.0.1760163

14. Gonzales GF, Córdova A, Vega K, et al. Effect of Lepidium meyenii (MACA) on sexual desire and its absent relationship with serum testosterone levels in adult healthy men. Andrologia. 2002;34(6):367-372. doi:10.1046/j.1439-0272.2002.00519.x

15. Gonzales GF, Cordova A, Gonzales C, Chung A, Vega K, Villena A. Lepidium meyenii (Maca) improved semen parameters in adult men. Asian J Androl. 2001;3(4):301-303.

bottom of page