Energy & Fatigue Reduction
Study Design: A 12-week, randomized, double-blind, placebo-controlled trial studied the effects of 3 g daily Maca supplementation on energy and quality of life in adults.
Findings: Participants reported notable increases in energy levels and decreases in fatigue compared to the placebo. (2)
Libido & Sexual Function
Study Design: A randomized, double-blind, placebo-controlled study looked at how Maca (1.5 g and 3 g daily) affected sexual desire in healthy adults over 12 weeks.
Findings: Supplementing with maca led to notable increases in sexual desire, regardless of mood changes. (3)
Male Fertility & Sperm Quality Support
Study Design: A 12-week randomized clinical study looked at the effects of Lepidium meyenii (1.5 g to 3 g daily) on semen parameters in healthy adult men.
Findings: Maca supplementation led to significant increases in sperm concentration, total sperm count, and motility compared to baseline values. It did not change serum testosterone or estradiol levels, which suggests that it works through a non-hormonal mechanism. (4)