In brief: Maca (Lepidium meyenii) is an Andean plant whose root is traditionally used as food and as a herbal product. Clinical studies mainly examine sexual desire, sexual function and subjective symptoms.
What do studies show?
| Question | Interpretation |
|---|---|
| Sexual desire | Small positive signals in some studies |
| Erectile function | Limited evidence |
| Testosterone | No reliable increase |
| “Hormone balance” | Too broad a claim |
A systematic review found only a few small randomised trials and judged the evidence for sexual function limited.[1] In a randomised trial in healthy men, Maca did not alter measured reproductive hormones including testosterone.[2]
Libido is not the same as testosterone
Some studies found improved subjective sexual desire without a testosterone increase. A possible effect should therefore not be marketed as a “natural testosterone booster.”
Product quality
Gelatinised powders, raw powders and extracts are not automatically comparable. Variety, processing and dose differ between products and studies.
FAQ
Does Maca raise testosterone?
No reliable increase has been shown.
Can Maca improve libido?
Possibly in some people; evidence is limited.
Is Maca an ED medicine?
No.
Is more Maca better?
No.
Conclusion
Maca is an interesting traditional plant product. Claims about libido are more plausible than testosterone claims, but the clinical evidence remains limited.
