The strongest evidence is that it may increase sperm count and improve fertility in certain men," she says.
Berman, who co-authored The National Women’s Health Network’s The Truth about Hormone Replacement Therapy, says there have been no clinical trials done on women regarding reduction of menopausal symptoms.
A review of maca in the journal Current Sexual Health Reports concluded "there is no strong medical evidence to support its use for female sexual dysfunction." Georgetown University Medical Center professor Adriane Fugh-Berman, MD, says, "Maca might have a positive effect on sexual dysfunction.
Yet there are so many psychological and social aspects when measuring sexual healing that it is hard to be conclusive." Berman is the author of 5-Minute Herb and Dietary Supplement Clinical Consult.