Maca (Lepidium meyenii) is grown at high elevations in the Andes region of central Peru. It has been used for centuries by indigenous Peruvians as a food source, as well as for increasing stamina and energy.
Maca has traditionally been used as an aphrodisiac. The strongest research on Maca suggests libido boosting in both sexes.
It does not work through hormones, and does not increase testosterone or estrogen.
Men supplementing maca have been known to experience an increase in sperm production.
Maca also appears to be a potent suppressor of prostate hypertrophy, with potency similar to finasteride, a synthetic drug for the treatment of enlarged prostates. Preliminary research also suggests maca can protect the brain from damage, improve bone health, and even improve cognitive ability in healthy people.
The standard dose for maca is 1,500-3,000mg daily, best taken with food.