Supplements

Maca

Effective dose
1.5–3 g
Evidence
2/5· Emerging

Last updated June 1, 2026

What it is

Maca is a root vegetable from the Peruvian Andes (Lepidium meyenii) taken in dried or powdered form as a supplement. It is marketed for libido, energy, and fertility, though its mechanism is not well established and it does not appear to act on sex hormones. It is consumed as a food-like powder or in capsules.

Benefits

Small trials suggest 1.5-3 grams per day may improve sexual desire in some adults, with the most consistent signal for libido rather than erectile function or hormones. Evidence is preliminary and effects, where seen, are modest.

When to take it

Taken daily, often in the morning; some users split the dose. Studies typically ran 6-12 weeks, suggesting consistent daily use over weeks.

Side effects

Generally well tolerated in studies, with occasional mild gastrointestinal upset. Long-term safety data are limited, and people with hormone-sensitive conditions or thyroid concerns may wish to consult a clinician.

Sources

Products containing Maca

No products in our database contain this ingredient yet.