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Table 2 Concentrations of essential macro and trace elements in clay samples

From: Potential health risk assessment of toxic metals contamination in clay eaten as pica (geophagia) among pregnant women of Ho in the Volta Region of Ghana

Mineral ElementConcentration (mg/Kg)
(Mean ± SD)
Recommended Dietary Intake (RDI), WHO [28]
Iron1.38 ± 1.518 mg
Copper2.40 ± 1.50.9 mg
Zinc7.74 ± 1.511 mg
Potassium4.01 ± 1.03100–3500 mg
Magnesium13.24 ± 2.2280–350 mg
Sodium13.76 ± 2.1500–2400 mg