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Contents of eight mineral elements in maca ( Lepidium meyenii  Walp.) from China and Peru were determined by inductively coupled plasma optical emission spectroscopy. Cu contents in maca samples from China (2.5–31 mg kg −1  dry weight, dw) were higher than the samples from Peru (<2.1 mg kg −1  dw). Na in two samples from China was found to be significantly of high content (2400 and 2600 mg kg −1  dw). The contents (mg kg −1  dw) of B, Co, Cr, Li, Ni, and Zn were, respectively, 8.1–21, <0.023, <1.1~3.5, 0.020–0.17, 0.085–4.5, and 10–39 for the samples from China, while being 6.6–12, <0.023, <1.1~2.3, 0.035–0.063, 0.68–1.7, and 27–39 for the samples from Peru.

Comparison of Mineral Element Content in a Functional Food Maca (Lepidium meyeniiWalp.) from Asia and South America