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Sodium (Na+), Potassium (K+), Calcium (Ca2+), Chloride (Cl-), Bicarbonate (HCO3-) are the major ones. Some ones that are essential to good health but in much smaller quantities include Iron (Fe2+), Magnesium (Mg2+), Zinc (Zn2+), and lots of others.

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16y ago

What else can I help you with?