Blog · Ingredient evidence
Maca Root Benefits: What the Evidence Covers and What It Does Not
Maca root benefits are studied in only a few small human trials, mostly on sexual function and menopause symptoms, and reviews rate that evidence as limited. Maca does not appear in that research as a blood sugar aid. In Glyco Defender it is the first blend line, so a dropperful holds at most 15.5 mg.
Written by the Glyco Defender label deskUpdated · 4 min read

What are the benefits of maca root?
The evidence is thin. Only a few small human trials exist, mostly on sexual function and menopause symptoms, and systematic reviews rate the evidence as limited (MSKCC, Maca).
The source we use does not mention blood sugar at all. So a blood sugar claim built on maca would rest on nothing we can cite.
That matters here because maca leads the Glyco Defender blend. First place sounds important, yet it only means heaviest on the list.
How much maca is in Glyco Defender?
At most 15.5 mg, and almost certainly less. Maca extract is listed first, and the blend weighs 15.47 mg for all 21 lines together.
If maca held the whole 15.47 mg, the other 20 lines would be empty, which the label shows is not so. In an even split, each line gets about 0.74 mg. Single weights are hidden under US rules (21 CFR 101.36 (eCFR)).
| Reading | Maca per dropperful |
|---|---|
| Absolute ceiling (1st place) | 15.5 mg |
| Even split of 21 lines | About 0.74 mg |
| Extract ratio | 20:1, which shows plant used, not strength (Monagas et al., Front Pharmacol 2022) |
| Studied dose | Not given in our source |
Who should be careful with maca?
People who are pregnant or breastfeeding should avoid it, and people with hormone-sensitive cancers should talk to a provider first (MSKCC, Maca).
The Glyco Defender label already bars use by anyone under 18 and by pregnant or nursing women, and asks people with a known medical condition to consult a physician.
Maca has been studied for other goals. Treat any blood sugar promise as unproven, and keep taking prescribed medicine as directed.

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See packsDoes maca make Glyco Defender worth trying?
Not by itself. Maca adds little evidence for the sales page's blood sugar promises, and its real weight is unknown.
Read the whole supplement facts and the benefits page before you decide, and compare the claims with the proof.
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FAQ01
Questions about maca root
Is maca a stimulant?
Our source does not describe maca as a stimulant. In Glyco Defender, the caffeine sources are guarana and green tea, with no caffeine amount printed (MSKCC, Guarana).
Does maca lower blood sugar?
The summary we rely on does not link maca to blood sugar (MSKCC, Maca). Studies it covers looked at sexual function and menopause symptoms, and the evidence there is limited.
Is maca extract the main ingredient in Glyco Defender?
It is the first blend line, which means the heaviest on the list. Its exact weight is not printed, and it is at most 15.5 mg because the whole blend is 15.47 mg.
Who wrote this02
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by a licensed U.S. retail desk for Glyco Defender, not by the manufacturer or the label's distributor. Buying through our order links earns us money.
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