Reducing erectile dysfunction
Historically Maca has been used for erectile dysfunction in South America. Being an adaptogen maca root does take time for the benefits to kick in. Taking a maca supplement with aid in rebalancing and repairing the circulatory issue of the penial artery (Laux, M., 2008) In terms of sexual disorders and male health, taking a maca supplement can also improve sperm count and volume by increasing insulin growth factor, showing a 200% increase in some men who supplement with about 1500mg of maca powder daily (always begin at a lower dose, work your way up and consult your physician or nutritionist). This aids in increasing male fertility (Laux, M., 2008). It has been shown in preclinical studies that black maca root powder has the greatest effect on males sperm production (Khan, I., et al., 2010). Taking a maca supplement can also bring balance back to male hormone levels including progesterone and testosterone (ibid). Maca root could also have benefits for people. A small study in 2009 looked at the effect of consuming 2.4g of maca root per day for 12 weeks on participants' perception of their general well-being.
Those taking maca root experienced a more significant increase in well-being than those taking a placebo.
Boosting energy and endurance
Some athletes and bodybuilders use black maca root as a supplement to increase energy and performance. Some evidence exists to support this.
Maca is not currently associated with any health risks in most people and is unlikely to cause any side effects in moderate doses.
However, due to its effect on hormones, people with thyroid problems should avoid taking maca. It is also better to avoid taking maca when undergoing treatments that modify hormonal levels, such as treatments for breast cancer.