Maca explained: what it is and side effects

Maca comes from a perennial plant cultivated high in the Andes mountains and is also called Peruvian ginseng. It is derived from the roots of Lepidium meyenii, whose main edible part is an underground tuber similar to a radish or turnip. Three products we reviewed list maca, and none prints its individual amount: each includes it in a 200 mg proprietary blend.

MaMacaMaMaca
What it is
Plant
Amounts the NIH names
Daily maca doses range from 500 to 3000 mg, depending on the preparation and intended use.
In the products we reviewed
3, none prints the amount

What maca is

  • Maca is derived from the roots of Lepidium meyenii.1
  • Maca comes from a perennial plant cultivated at high altitudes in the Andes mountains.1
  • Maca is also called Peruvian ginseng and belongs to the mustard family.1
  • The main edible part of maca is an underground tuber similar to a radish or turnip that can be white, black or red.1
  • Maca contains mainly carbohydrates and protein and is an excellent source of essential amino acids, iron and calcium.1
  • Maca preparations include capsules, tablets, liquid and root extract.1

How much maca each product gives

Per serving, as each label prints it, against the amounts the NIH names

NIH: 500 mg to 3,000 mg per dose

Amount not printed: the dashed line shows the most it can be, the whole blend

GlucoTonicNot printed · at most 200 mg
Sugar DefenderNot printed · at most 200 mg
Glyco HarmonyNot printed · at most 200 mg

Before you take it

Side effects

  • Maca side effects are uncommon and mild and mostly include digestive symptoms and headaches.1

These statements have not been evaluated by the FDA. A supplement is not a medicine.

The 3 products we reviewed that list maca

ProductForm and servingMaca per servingOur scorePrice a bottleBuy
GlucoTonic#1 in blood sugar supportLiquid drops1 mlNot printedIn a 200 mg proprietary blend9.9$49Check price
Sugar Defender#3 in blood sugar supportLiquid drops1 mlNot printedIn a 200 mg proprietary blend9.5$49Check price
Glyco Harmony#5 in blood sugar supportLiquid drops1 mlNot printedIn a 200 mg proprietary blend9.3$49Check price
Prices checked Oct 5, 2026

Questions people ask

What is maca root?

Maca root comes from Lepidium meyenii, a plant in the mustard family cultivated at high altitudes in the Andes mountains. Its main edible part is an underground tuber that can be white, black or red. The NIH says maca contains mainly carbohydrates and protein and is an excellent source of essential amino acids, iron and calcium.

Does maca root come in capsules or drops?

Yes, maca preparations include capsules, tablets, liquid and root extract. The three products we reviewed that list maca are liquid drops.

How much maca root should I take per day?

500 to 3000 mg a day is the maca dose range the NIH names, depending on the preparation and intended use. Ask a clinician before adding maca.

What are the side effects of maca root?

Maca side effects are uncommon and mild, mostly digestive symptoms and headaches. Ask a clinician before adding maca.

Which products we reviewed contain maca root, and how much?

GlucoTonic, Sugar Defender and Glyco Harmony all list maca. Each includes it in a 200 mg proprietary blend per 1 ml serving, but none prints the individual maca amount. The 200 mg figure is for the blend, not maca alone.

Also in these products

Sources

The products, amounts and prices come from each product's label and checkout, as its review shows them. AI drafts our pages from listed sources, figures are checked against them, and we have not tried the products.

  1. 1NIH LiverTox, Macancbi.nlm.nih.gov/bookschecked