Effects of Maca Supplementation on Libido, Energy, and Exercise Performance: A Systematic Review
Shin BC, et al.
Evidence is still limited and needs further study
Summary
A systematic review (4 RCTs included) evaluating the effects of maca (Lepidium meyenii) on libido, sexual function, and energy. Weak to moderate evidence exists for improvements in sexual desire, but trials are small and methodologically limited. No direct hormonal effects (testosterone, estrogen) have been demonstrated; indirect effects through phytochemicals (macamides, macaenes) on the nervous and endocrine systems are hypothesized. Exercise performance effects are preliminary and limited. Favorable safety profile.
Key findings
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Weak to moderate evidence for improvement in sexual desire (multiple RCTs)
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No direct effect on testosterone or estrogen levels confirmed
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Macamides and macaenes are considered the primary bioactive phytochemicals
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Exercise performance effects are preliminary and limited
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Favorable safety profile with no serious adverse effects reported
Last checked: 2026-06-24