Maca

Maca supplement forms studied in human research

Research reviewed, but no outcome currently meets the evidence threshold. The studies exist, but the current human evidence is still too limited, mixed, or narrow for a confident benefit claim.

What the research says

The research has been reviewed for each health effect below. Right now, none of these uses clears the evidence bar for a confident benefit claim.

— · Not enough human evidence yet

—

Libido Sexual Desire General Sexual Function

Research has been reviewed for libido Sexual Desire General Sexual Function, but the current human evidence is still too limited or inconsistent for a confident benefit claim.

2 papers · 1 research review

—

Menopause Symptoms Hot Flashes Postmenopausal Symptoms

Research has been reviewed for menopause Symptoms Hot Flashes Postmenopausal Symptoms, but the current human evidence is still too limited or inconsistent for a confident benefit claim.

3 papers · 1 research review

Safety

Safety is graded separately from benefits. Read these cautions first, especially if you take medication or have a medical condition.

? Safety evidence unclear Human safety data are limited or inconsistent.

Side effects and tolerability

Safety evidence is limited here, so this should be read cautiously rather than as reassurance.

0 direct human studies

⚠ Concerning The human evidence points to a meaningful reason for caution.

⚠

Medication and condition cautions

This is a safety note, not a benefit claim. It points to a real reason for caution.

1 direct human study

Quick facts

A quick read on what this page supports right now.

Health effects reviewed

2 health effects reviewed

Best grade shown

— · Not enough human evidence yet

Benefits with support

0 uses currently show some level of supportive evidence

Safety rows

2 separate safety or caution rows

Research volume

5 unique research papers across graded uses on this page

What this means

No use on this page currently clears the evidence bar for a confident benefit claim.

Quality-verified products

Products that pass third-party quality testing.

Product quality data coming soon

Any future product listings should avoid broader benefit claims than the evidence grades shown on this page.

How we graded Maca

This page shows the current public rows for Maca: 5 unique research papers across 2 visible health effects. Safety rows are shown separately from benefit rows when available. The page includes 2 review-level papers and 3 direct human studies. Each supplement is graded by health effect using a certainty × effect matrix applied across PubMed evidence per health effect. Cochrane reviews and high-quality systematic reviews carry the most weight. See Methodology for full detail.

Read the full methodology → · Citation PDF coming soon