Maca
Useful mainly for adults wanting modestly improved libido or sexual function, including SSRI users and postmenopausal women.
Quick decision guide
May help most
adults wanting modestly improved libido or sexual function, including SSRI users and postmenopausal women
Common dosing range
1.5–3 g/day dried root powder
When to expect effects
Weeks (4–8)
Watch out for
limited safety data in pregnancy and hormone-sensitive cancers
What is it
Maca (Lepidium meyenii) is a cruciferous root vegetable native to the high Andes of Peru, where it has been cultivated for over 2,000 years. The dried root is consumed as a food and used in traditional Andean medicine for energy, fertility, and libido.
Is it worth it for you?
Use this as a quick fit check, not a diagnosis.
Worth considering if…
Probably skip if…
Evidence at a glance
| Goal | Effect | Best fit | Time |
|---|---|---|---|
sexual function and libido Limited Evidence | Modest | men and women with low libido, including postmenopausal women | Weeks |
ssri-induced sexual dysfunction Limited Evidence | Small | people on SSRIs with sexual side effects | Weeks |
menopausal symptoms Limited Evidence | Small | perimenopausal and postmenopausal women | Weeks |
sperm parameters Limited Evidence | Small | men seeking to support semen quality | Weeks to months |
sexual function and libido
- Effect
- Modest
- Best fit
- men and women with low libido, including postmenopausal women
- Time
- Weeks
ssri-induced sexual dysfunction
- Effect
- Small
- Best fit
- people on SSRIs with sexual side effects
- Time
- Weeks
menopausal symptoms
- Effect
- Small
- Best fit
- perimenopausal and postmenopausal women
- Time
- Weeks
sperm parameters
- Effect
- Small
- Best fit
- men seeking to support semen quality
- Time
- Weeks to months
Evidence for 4 uses
AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.
sexual function and libido
Supplement benefitSeveral small randomized trials report improved self-reported sexual desire and function in both men and women after 6–12 weeks. Effects appear independent of serum testosterone or estrogen, which generally do not change. Black maca shows the strongest signal for male sexual function.
Bottom line: A reasonable food-grade option for modestly improving libido, with effects that build over weeks.
ssri-induced sexual dysfunction
Disease adjunctA small pilot RCT found higher-dose maca improved SSRI-induced sexual dysfunction more than placebo, with a stronger effect at 3 g/day. Sample sizes were very small and the finding has not been widely replicated.
Bottom line: Preliminary support as an add-on for antidepressant-related sexual side effects.
menopausal symptoms
Supplement benefitSmall trials suggest maca may modestly reduce some menopausal symptom scores, possibly independent of hormone changes. Studies are small, short, and heterogeneous in preparation and dose.
Bottom line: Limited, preliminary evidence for easing some menopausal symptoms.
Evidence is mixed
Trials are small with inconsistent symptom scales, and hormone levels generally do not change, making the mechanism and reliability uncertain.
sperm parameters
Biomarker supportSmall studies report increases in sperm count and motility with maca over several weeks. These are semen-analysis biomarkers; effects on actual fertility or pregnancy rates have not been demonstrated.
Bottom line: May modestly improve semen-analysis measures, but fertility outcomes are unproven.
How it works
How to take it
What to track
4 commercial forms
Compare the main delivery options and what they’re best suited for.
Yellow maca powder (most common)
The most widely available and most economical maca color. Used for general energy, mood, and libido.
Standard form; balanced effect profile.
Black maca
Less common, often more expensive. Shows stronger signal for sperm parameters and male libido.
Different macamide profile; favored in male sexual function and endurance trials.
Red maca
Used in trials focused on benign prostatic hyperplasia and postmenopausal bone health.
Different glucosinolate profile; favored for prostate and bone health studies.
Gelatinized maca
Recommended for people with sensitive stomachs or those who don't tolerate raw maca well.
Cooked to break down starches; more digestible than raw powder.
Safety
Know the common side effects, key cautions, and who should avoid it.
Common side effects
Who should avoid it
- hormone-sensitive cancers (theoretical)
- untreated thyroid disease if iodine-deficient
- pregnancy and breastfeeding (limited data)
Pregnancy & breastfeeding
Limited modern safety data despite traditional Andean use; consult a clinician before use.
Interactions
glucosinolate content may modestly affect the thyroid, similar to other crucifers
may modestly affect blood pressure
theoretical additive effect, though direct hormonal action is not robustly shown
Protocols featuring Maca
Evidence-backed routines where Maca plays a role.
Women's Libido & Desire
hormones
Female sexual desire is multifactorial — hormonal status (estrogen, testosterone, progesterone, thyroid), relationship dynamics, mental health, stress, sleep, medication side effects (especially SSRIs and oral contraceptives), and physical comfort all matter, often more than any single supplement. Hypoactive Sexual Desire Disorder (HSDD) affects roughly 1 in 10 women, and the most common drivers in our culture are chronic stress, sleep debt, medication side effects, and relational rather than biochemical factors. Supplements address one slice of the picture and are not a substitute for proper medical evaluation when desire loss is severe or distressing. That said, a handful of supplements have real trial evidence in women specifically — not extrapolated from male data. Maca has the most consistent evidence for libido and desire in both pre- and postmenopausal women, with effects that appear independent of hormonal change. Ashwagandha shows benefit on female sexual function through stress modulation. Vitamin D and zinc are deficiency-correction nutrients — if you''re low, repletion helps; if you''re replete, additional supplementation does nothing. L-citrulline has indirect support for genital blood flow. Most women''s libido issues are NOT supplement-deficiency problems, but for the subset where they are, this stack is well-targeted.
Perimenopause Support
hormones
Perimenopause is the 4-10 year transition leading into menopause, typically starting in the late thirties to mid-forties. It is dominated not by low estrogen but by hormonal volatility — estradiol swings, increasingly anovulatory cycles, progesterone decline. The symptom pattern differs from menopause itself: irregular cycles, heavy or unpredictable periods, mid-cycle bloating, PMS-like mood shifts intensifying, sleep disruption, brain fog, anxiety surges, and emerging hot flashes. Many women in their forties are dismissed as "just stressed" when they are in fact in early perimenopause. This stack supports cycle regularity, mood stability, and sleep through the transition. It is not a replacement for medical evaluation — a menopause-trained provider can offer cyclic progesterone or low-dose hormone therapy when indicated.
Sexual Health for Men
hormones
Male sexual function is downstream of vascular health, hormonal balance, nervous system regulation, and psychological state. Most "natural Viagra" supplements are over-marketed and under-evidenced, but a handful of compounds have real trial backing. L-citrulline is the most-evidenced supplement for erectile function in mild-to-moderate ED — it works through the same nitric oxide pathway as PDE5 inhibitors. Panax ginseng has the second-strongest evidence and works through somewhat different mechanisms. Zinc supports testosterone synthesis when deficient. Maca has small trial evidence for libido specifically. This stack is for mild-to-moderate symptoms and for healthy men optimizing function — not a substitute for proper medical workup of new-onset erectile dysfunction, which can be an early sign of cardiovascular disease.
Food sources
| Food | Amount | %DV |
|---|---|---|
| Maca root powder (1 tsp) | ~5 g | — |
Maca root powder (1 tsp)
- Amount
- ~5 g
- %DV
- —
Choosing a product
What to look for on the label — and what to be skeptical of.
Look for…
Be skeptical of…
Frequently asked questions
Does maca really boost testosterone?⌄
No, not according to controlled trials. Maca improves sexual function and libido without raising serum testosterone or other sex hormones. The mechanism appears to involve dopaminergic and adrenergic systems rather than direct hormonal effects. The 'natural testosterone booster' marketing is not supported by the evidence.
What's the difference between yellow, black, and red maca?⌄
Same species, different cultivars. Yellow is the most common and most economical. Black is favored for male sexual function and endurance. Red is favored for prostate and bone health. For general use, yellow is fine; for specific applications, black or red may be preferred.
Is gelatinized maca better than raw?⌄
More digestible for many people. Raw maca contains substantial starch that some users find hard to digest. Gelatinization (a cooking process, not adding gelatin) breaks down starches and concentrates the bioactives. Both can work; gelatinized is generally better tolerated.
How long until maca works for libido?⌄
Most trials show effects on sexual function and libido appearing over 6 to 8 weeks of consistent daily use. Acute single-dose effects are minimal.
Can I take maca with my SSRI?⌄
Yes, and a small trial showed maca improved sexual function in women on SSRIs, an under-treated side effect. No significant pharmacological interaction is documented.
References by claim
sexual function and libido
ssri-induced sexual dysfunction
menopausal symptoms
Safety
Memorial Sloan Kettering — Maca — MSKCC About Herbs link
Track Maca with Pilora
Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.
Coming to App StoreDisclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.