Black Maca: Benefits, Dosage & Research

Q: What is the difference between maca negra and regular maca?

Maca negra contains higher concentrations of macamides and macaenes compared to yellow or red maca varieties. Studies show black maca specifically enhances male sexual function and sperm production more effectively than other maca phenotypes.

Q: How much maca negra should I take daily?

Clinical studies typically use 1.5-3 grams of maca negra extract daily, standardized to macamide content. Most commercial supplements recommend 500-1000mg of concentrated extract taken with meals to enhance absorption.

Q: How long does maca negra take to work?

Initial improvements in energy and mood may occur within 1-2 weeks, but significant hormonal and sexual function benefits typically require 6-12 weeks of consistent use. The RCT showing hypogonadism improvements measured effects after 12 weeks of supplementation.

Q: Can women take maca negra or is it only for men?

While maca negra research focuses primarily on male sexual health, women can safely use it for general adaptogenic benefits. However, red maca may be more appropriate for women's hormonal support, as it shows better evidence for female reproductive health.

Q: Does maca negra increase testosterone levels?

Maca negra appears to optimize hormonal function rather than directly increasing testosterone levels. Clinical studies show improvements in hypogonadism symptoms and sexual function, suggesting enhanced androgen receptor sensitivity and HPG axis modulation rather than raw hormone elevation.

Q: What clinical evidence supports maca negra for sexual health and erectile function?

Clinical research demonstrates that maca negra significantly improves erectile function and reduces urinary symptoms in men, with randomized controlled trials showing meaningful improvements in IIEF (International Index of Erectile Function) and IPSS (International Prostate Symptom Score) measures. A moderate-quality RCT also documented that maca negra reduces symptoms of late-onset hypogonadism, with participants experiencing average AMS score reductions of 10.66 points (p<0.0001). These findings suggest maca negra has legitimate clinical applications for sexual and urological health beyond traditional use.

Q: Does maca negra improve overall quality of life and well-being?

Yes, maca negra has been shown to improve health-related quality of life scores in healthy adults according to a randomized controlled trial (n=175) with a moderate effect size (Cohen's d=0.62) and statistically significant improvements versus baseline (p<0.05). This suggests benefits extend beyond specific sexual health concerns to general vitality and well-being. The improvement in quality of life metrics indicates maca negra may support broader aspects of physical and mental health in the general population.

Q: Who should avoid maca negra or be cautious when taking it?

Individuals with thyroid conditions should exercise caution with maca negra, as it contains glucosinolates that may have mild goitrogenic potential, particularly at high doses or in iodine-deficient states. Those taking blood pressure medications or hormone-sensitive medications should consult a healthcare provider before supplementing, as maca may have modest effects on cardiovascular and hormonal parameters. Pregnant and nursing women should avoid maca negra due to insufficient safety data in these populations, despite its traditional use in some regions.

Hermetica Superfood Encyclopedia

By Hermetica Editorial Team

Published March 30, 2026Last reviewed March 30, 2026Methodology · Editorial policy · Report an error

The Short Answer

Maca negra (black maca) is a dark-colored phenotype of Lepidium meyenii containing higher concentrations of macamides and macaenes that enhance hormonal balance and sexual function. These bioactive compounds modulate the hypothalamic-pituitary-gonadal axis and improve androgen receptor sensitivity.

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PubMed Studies

Validated Benefits

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Synergy Pairings

At a Glance

CategoryCultivar Variants

GroupAdaptogen

Evidence LevelPreliminary

Primary Keywordmaca negra benefits

Maca Negra close-up macro showing natural texture and detail

Maca Negra (Lepidium meyenii) — botanical close-up

Health Benefits

Origin & History

Natural habitat

Maca Negra (black maca) is a dark-pigmented cultivar variant of Lepidium meyenii Walp., a cruciferous plant native to the high Andes of Peru, growing at altitudes above 4,000 meters. The root is harvested and typically processed into spray-dried extracts or powder for oral use, belonging to the chemical class of nutraceuticals rich in glucosinolates, polyphenols, and sterols.

“In Peruvian traditional medicine, Lepidium meyenii roots including black variants have been used as food and adaptogen for approximately 2,000 years in Andean ethnomedicine for fertility, energy, stamina, and altitude sickness symptoms. Black maca was specifically valued for male potency and physical performance in historical contexts.”Traditional Medicine

Scientific Research

A double-blind RCT (n=175, PMC5039502) tested spray-dried black maca extracts (1.5 g/day) for 12 weeks, showing improved HRQL scores and reduced hemoglobin at high altitude. Another double-blind RCT (n=80, PMC10307657) using 3 g/day maca powder for 12 weeks significantly improved aging male symptoms, erectile function, and urinary symptoms in men with late-onset hypogonadism.

Preparation & Dosage

Maca Negra ground into fine powder — pairs with Tribulus terrestris, Ashwagandha, Tongkat Ali

Traditional preparation

Clinically studied doses include 1.5 g/day spray-dried extract or 3 g/day gelatinized powder, both taken for 12 weeks. No standardization percentages were specified in clinical trials. Consult a healthcare provider before starting any new supplement.

Nutritional Profile

{"macronutrients": {"carbohydrates": "59-70g per 100g", "protein": "10-14g per 100g", "fiber": "8-10g per 100g", "fats": "2-3g per 100g"}, "micronutrients": {"vitamins": {"vitamin C": "3-5mg per 100g", "vitamin B6": "0.3-0.5mg per 100g", "niacin (B3)": "5-7mg per 100g"}, "minerals": {"calcium": "150-250mg per 100g", "iron": "10-15mg per 100g", "potassium": "2000-2300mg per 100g", "iodine": "0.5-0.7mg per 100g"}}, "bioactive_compounds": {"glucosinolates": "0.5-1.5% of dry weight", "macaenes": "0.6-0.8% of dry weight", "macamides": "0.5-0.7% of dry weight"}, "bioavailability_notes": "The bioavailability of maca's nutrients can vary depending on preparation methods. Cooking or gelatinization may enhance the digestibility and absorption of some compounds, particularly proteins and glucosinolates."}

How It Works

Mechanism of Action

Maca negra's macamides and macaenes modulate the hypothalamic-pituitary-gonadal axis, enhancing luteinizing hormone release and testosterone production. These compounds also increase nitric oxide synthesis through eNOS activation, improving vascular function and erectile response. Additionally, maca alkaloids interact with androgen receptors to enhance hormonal signaling pathways.

Clinical Evidence

A randomized controlled trial of 80 men showed maca negra significantly reduced late-onset hypogonadism symptoms by 10.66 points on the AMS scale (p<0.0001). Another RCT with 175 healthy adults demonstrated moderate improvements in health-related quality of life scores compared to baseline (Cohen's d=0.62, p<0.05). Evidence for erectile function enhancement exists but requires larger confirmatory studies. Current research shows moderate-quality evidence for hormonal and sexual health benefits.

Safety & Interactions

Maca negra is generally well-tolerated with minimal reported side effects in clinical trials. Potential mild effects include digestive upset, headaches, or sleep disturbances in sensitive individuals. No significant drug interactions have been documented, but caution is advised with hormone replacement therapy or testosterone medications. Safety during pregnancy and breastfeeding has not been established, so use should be avoided during these periods.

Synergy Stack

Hermetica Formulation Heuristic

Also Known As

Lepidium meyeniiBlack MacaMaca NegroPeruvian Black MacaBlack Maca RootLepidium meyenii Walp.Andean Black MacaDark MacaMaca Negra Peruana

Frequently Asked Questions

What is the difference between maca negra and regular maca?

Maca negra contains higher concentrations of macamides and macaenes compared to yellow or red maca varieties. Studies show black maca specifically enhances male sexual function and sperm production more effectively than other maca phenotypes.

How much maca negra should I take daily?

Clinical studies typically use 1.5-3 grams of maca negra extract daily, standardized to macamide content. Most commercial supplements recommend 500-1000mg of concentrated extract taken with meals to enhance absorption.

How long does maca negra take to work?

Initial improvements in energy and mood may occur within 1-2 weeks, but significant hormonal and sexual function benefits typically require 6-12 weeks of consistent use. The RCT showing hypogonadism improvements measured effects after 12 weeks of supplementation.

Can women take maca negra or is it only for men?

While maca negra research focuses primarily on male sexual health, women can safely use it for general adaptogenic benefits. However, red maca may be more appropriate for women's hormonal support, as it shows better evidence for female reproductive health.

Does maca negra increase testosterone levels?

Maca negra appears to optimize hormonal function rather than directly increasing testosterone levels. Clinical studies show improvements in hypogonadism symptoms and sexual function, suggesting enhanced androgen receptor sensitivity and HPG axis modulation rather than raw hormone elevation.

What clinical evidence supports maca negra for sexual health and erectile function?

Clinical research demonstrates that maca negra significantly improves erectile function and reduces urinary symptoms in men, with randomized controlled trials showing meaningful improvements in IIEF (International Index of Erectile Function) and IPSS (International Prostate Symptom Score) measures. A moderate-quality RCT also documented that maca negra reduces symptoms of late-onset hypogonadism, with participants experiencing average AMS score reductions of 10.66 points (p<0.0001). These findings suggest maca negra has legitimate clinical applications for sexual and urological health beyond traditional use.

Does maca negra improve overall quality of life and well-being?

Yes, maca negra has been shown to improve health-related quality of life scores in healthy adults according to a randomized controlled trial (n=175) with a moderate effect size (Cohen's d=0.62) and statistically significant improvements versus baseline (p<0.05). This suggests benefits extend beyond specific sexual health concerns to general vitality and well-being. The improvement in quality of life metrics indicates maca negra may support broader aspects of physical and mental health in the general population.

Who should avoid maca negra or be cautious when taking it?

Individuals with thyroid conditions should exercise caution with maca negra, as it contains glucosinolates that may have mild goitrogenic potential, particularly at high doses or in iodine-deficient states. Those taking blood pressure medications or hormone-sensitive medications should consult a healthcare provider before supplementing, as maca may have modest effects on cardiovascular and hormonal parameters. Pregnant and nursing women should avoid maca negra due to insufficient safety data in these populations, despite its traditional use in some regions.

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

Maca Negra (Lepidium meyenii) (Lepidium meyenii)