Synopsis

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

Maca (Lepidium meyenii), sometimes referred to as "Macaenes" due to its bioactive compounds, has a long history of traditional use in the Andes for enhancing fertility and sexual function in both men and women. Historical records and indigenous use suggest that maca root was consumed to improve stamina, energy, and reproductive health. The traditional justification comes primarily from its reputation as a fertility-enhancing food rather than from robust scientific validation. Some small human studies and animal research have investigated maca’s effects on fertility parameters, such as sperm count and motility in men, with modest positive findings. However, these studies are limited by small sample sizes, short durations, and methodological weaknesses. For women, evidence is even more limited, with a few studies suggesting potential hormonal modulation, but lacking clear outcomes on fertility rates. Systematic reviews and meta-analyses to date conclude that more high-quality research is needed to confirm any benefits. In summary, while maca is traditionally used for supporting fertility, scientific evidence remains preliminary and inconsistent. Its use is best characterized as tradition-based, with only low to moderate quality evidence supporting its effectiveness for infertility.

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