Ayak Chichira, Ayuk Willku, Ginseng Andin, Ginseng Péruvien, Lepidium meyenii, Lepidium peruvianum, Maca Maca, Maca Péruvien, Maino, Maka, Peruvian Ginseng, Peruvian Maca.
Maca is a plant that grows in central Peru in the high plateaus of the Andes Mountains. It has been cultivated as a vegetable crop in this area for at least 3000 years. Maca is a relative of the radish and has an odor similar to butterscotch. Its root is used to make medicine.
People take maca by mouth for "tired blood" (anemia); chronic fatigue syndrome (CFS); and enhancing energy, stamina, athletic performance, and memory. People also take maca by mouth for female hormone imbalance, menstrual problems, symptoms of menopause, improving fertility, and sexual dysfunction caused by antidepressants, weak bones (osteoporosis), depression, stomach cancer, leukemia, HIV/AIDS, tuberculosis, erectile dysfunction (ED), to arouse sexual desire, and to boost the immune system.
In foods, maca is eaten baked or roasted, prepared as a soup, and used for making a fermented drink called maca chicha.
In agriculture, it is used to increase fertility in livestock.
How does it work?
Maca root contains many chemicals, including fatty acids and amino acids. However, there isn't enough information to know how maca might work.
Insufficient Evidence to Rate Effectiveness for...
- Sexual dysfunction caused by antidepressant drugs. Early research suggests that taking maca twice daily for 12 weeks slightly improves sexual dysfunction in women taking antidepressants.
- Male infertility. Early research shows that taking a specific maca product (Maca Gelatinizada La Molina, Laboratories Hersil, Lima, Peru) daily for 4 months increases semen and sperm count in healthy men. But it's not clear if this results in improved fertility.
- Postmenopausal conditions. Research suggests that taking maca (Maca Powder Healthychoices, Murwillumbah, NSW, Australia) daily for 6 weeks slightly improves blood pressure and some aspects of mood, including depression and anxiety, in postmenopausal women. But benefits are very small.
- Sexual desire. Early research shows that taking a specific maca product (Maca Gelatinizada La Molina, Laboratories Hersil, Lima, Peru) daily for 12 weeks can increase sexual desire in healthy men.
- "Tired blood" (anemia).
- Chronic fatigue syndrome (CFS).
- Improving energy and athletic performance.
- Improving memory.
- Female hormone imbalance.
- Menstrual problems.
- Symptoms of menopause.
- Stomach cancer.
- Boosting the immune system.
- Other conditions.
Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).
Hormone-sensitive conditions such as breast cancer, uterine cancer, ovarian cancer, endometriosis, or uterine fibroids: Extracts from maca might act like estrogen. If you have any condition that might be made worse by exposure to estrogen, do not use these extracts.
The appropriate dose of maca depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for maca (in children/in adults). Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.
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Chung, F., Rubio, J., Gonzales, C., Gasco, M., and Gonzales, G. F. Dose-response effects of Lepidium meyenii (Maca) aqueous extract on testicular function and weight of different organs in adult rats. J Ethnopharmacol. 4-8-2005;98(1-2):143-147. View abstract.
Cui, B., Zheng, B. L., He, K., and Zheng, Q. Y. Imidazole alkaloids from Lepidium meyenii. J Nat Prod 2003;66(8):1101-1103. View abstract.
Gonzales, C., Rubio, J., Gasco, M., Nieto, J., Yucra, S., and Gonzales, G. F. Effect of short-term and long-term treatments with three ecotypes of Lepidium meyenii (MACA) on spermatogenesis in rats. J Ethnopharmacol 2-20-2006;103(3):448-454. View abstract.
Gonzales, G. F., Ruiz, A., Gonzales, C., Villegas, L., and Cordova, A. Effect of Lepidium meyenii (maca) roots on spermatogenesis of male rats. Asian J Androl 2001;3(3):231-233. View abstract.
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Ruiz-Luna, A. C., Salazar, S., Aspajo, N. J., Rubio, J., Gasco, M., and Gonzales, G. F. Lepidium meyenii (Maca) increases litter size in normal adult female mice. Reprod.Biol Endocrinol 5-3-2005;3(1):16. View abstract.
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Gonzales GF, Cordova 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;34:367-72.. View abstract.
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Li G, Ammermann U, Quiros CF. Gluconsinolate contents in Maca (Lepidium peruvianum Chacon) seeds, sprouts, mature plants, and several derived commercial products. Economic Botany 2001;55:255-62.
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