Is maca powder good for fertility?

Maca powder has traditionally been consumed for thousands of years in Peru to enhance fertility in both men and women, including increasing sex drive and improve sperm motility.

A scientific review from 2009 Gonzales et al. compiled research from animal and human studies on 3 different types of Maca (yellow, black, and red maca). The review found Black Maca to have the most beneficial effect on sperm production when compared to yellow maca and red maca.