Maca has been used to help promote energy and stamina, increase libido, and enhance fertility. It is a powerful adaptogen that can help the body deal with biochemical. physiological and psychological stressors. It may have a revitalizing effect on those who are feeling low in energy and vitality. Maca may help reduce stress, increase energy levels and mental focus, and restore strength and vigor. It may also improve athletic performance by improving stamina and helping the body recover faster.