When people search for maca root benefits for men, they’re usually trying to understand what the research shows, not just what supplement brands claim. Maca root has been studied in a handful of small clinical trials looking at sexual health, energy, and semen quality in men. Here’s an honest, research-based look at what’s been observed so far, and where the evidence is still limited.
1. What the Research Suggests
One of the more studied areas around maca root is sexual desire. In a 12-week trial, 57 healthy men were given either 1,500 mg or 3,000 mg of maca root daily, compared to a placebo group (Gonzales et al., 2002, PubMed).
A few things researchers noted:
- Dose studied: 1,500–3,000 mg/day
- Duration: 12 weeks
- Observation: Participants in the maca group reported a change in sexual desire by around week 8
- Note: This change didn’t appear to be linked to shifts in testosterone or estrogen levels
This is a single small study, best understood as an early data point rather than a guarantee of results.
2. Erectile Function: What Studies Have Found
A separate double-blind trial looked at 50 men with mild erectile difficulties, giving them 2,400 mg of maca extract daily for 12 weeks. Researchers observed a greater improvement in erectile function scores and general well-being in the maca group compared to placebo (Zenico et al., 2009, PubMed). This study was small, and the authors noted the need for larger trials.
3. Sperm Quality: Early Research
A small number of studies have looked at maca root and semen parameters:
- One study observed changes in semen volume, sperm count, and motility in men who took 1,500–3,000 mg daily for four months (Gonzales et al., 2001, PubMed)
- A later systematic review found the findings suggestive but called for larger, better-designed studies before drawing firm conclusions (Lee et al., 2016, PubMed)
If fertility-related topics interest you, it may help to read more broadly about maca root supplement benefits, since research here tends to unfold gradually across studies rather than from one conclusive trial.
4. Energy and Physical Activity: What a Small Study Found
A pilot study followed eight trained male cyclists who took 2 grams of maca daily for two weeks. Researchers noted a change in performance on a 40 km time trial compared to baseline (Stone et al., 2009, PubMed). With only eight participants, this is a preliminary finding, not established evidence. For more context on how maca is used, this maca root supplement overview covers common forms and typical use.
5. Mood and Well-Being: What We Know So Far
Most mood-related maca research to date has focused on women rather than men. The erectile function study mentioned above did note improvements in general well-being among participants, alongside the physical measures researchers tracked (Zenico et al., 2009, PubMed). More targeted research in men is needed to draw stronger conclusions.
6. Testosterone: What Research Shows
A common question is whether maca root affects testosterone. A 12-week study measuring hormone levels in adult men reported:
- No significant change in testosterone
- No significant change in LH or FSH
- No significant change in estradiol
- These results occurred even though participants reported a change in sexual desire (Gonzales et al., 2003, PubMed)
Based on this research, maca root’s observed effects don’t appear tied to changes in these hormones, worth knowing if comparing it to other hormone-marketed supplements.
7. Prostate Health: Early-Stage Research
This area has the least evidence of humans. Animal studies have looked at red maca and prostate size in rats, noting differences compared to other maca varieties (Gonzales & Gasco et al., NCBI). No human trials exist on this topic, so treat it as an early research direction, not a supported use. To understand how maca varieties differ, this piece on black maca root walks through the distinctions researchers have studied.
What Dosage Have Studies Used?
Looking across the studies referenced above, a few patterns show up:
- Dose range studied: 1,500 mg to 3,000 mg per day
- Typical study length: 8 to 12 weeks
- When changes were reported: Most studies noted differences starting around week 8, not immediately
This summarizes what researchers used in trial settings, not a recommendation — individual needs vary.
Are There Safety Considerations?
In the studies referenced here, researchers reported maca was generally well tolerated, with few adverse effects noted. A few things are still worth keeping in mind:
- These studies were relatively short, so long-term data is limited
- People on medication or managing a hormone-sensitive condition should speak with a doctor first
- Supplement quality and sourcing can vary between brands
You can read more in this guide on maca root supplement side effects.
The Bottom Line
Research on maca root benefits for men is still developing. The studies with the most consistent findings relate to sexual desire, erectile function, and semen quality, though sample sizes remain small. Circle of Nature’s Maca Root & Ashwagandha Root Extract Capsules combine maca with ashwagandha, turmeric curcumin, and Bioperine, made in the USA for those exploring these ingredients as part of a daily routine.
FAQs
Does maca root work for men?
A small number of clinical studies have looked at maca root and men’s sexual health, energy, and semen quality, with some positive findings. Sample sizes are generally small, and researchers agree larger studies are needed.
How long before changes might be noticed?
In the studies reviewed, most changes were reported around 8 to 12 weeks of consistent use.
Does maca root raise testosterone?
Research so far has not shown maca to significantly change testosterone, LH, FSH, or estradiol levels, even in studies where other changes were reported.
This article is for informational purposes only and is not medical advice. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Talk to your doctor before starting any new supplement.
You may also like
Best Maca Root Supplements for Men: Energy, Testosterone & Performance Benefits
Low energy. Declining performance. A libido that’s not what it used to
Maca Root Supplement Benefits: What Happens After 7, 30 & 90 Days
Most people give up on maca root supplement benefits too early because
Maca and Ashwagandha: Natural Stress Relief and Energy Booster
Maca and ashwagandha are two of the most powerful adaptogenic herbs available