May improve certain aspects of fertility in males

Taking maca supplements may assist persons with sperm and enhance various elements of their fertility. Maca, for example, has been found in trials to boost sperm concentration or the quantity of sperm per milliliter of sperm. Male fertility is closely related to sperm concentration. In a 2020 trial, 69 males with modestly decreased sperm count or poor sperm motility were given maca. Sperm motility refers to the sperm's ability to swim appropriately.

Taking 2 grams of maca per day for 12 weeks enhanced sperm concentration much more than a placebo treatment. There was, however, no statistically significant change in sperm motility between the treatment and placebo groups. While these findings are encouraging, research is currently restricted. To examine the impact of maca supplementation on sperm quality and other aspects of male fertility, well-designed trials are required.