Essentials

Calcium (Ca), Magnesium (Mg), Manganese (Mn), Potassium (K), Sodium (Na), Strontium (Sr), Zinc (Zn), Iron (Fe), Copper (Cu)

Non-essentials

Cadmium (Cd), Mercury (Hg), Silver (Ag) Tallium (Ti), Lead (Pb)

Borderline

Chromium (Cr), Cobalt (Co) Nickel (Ni), Arsenic (As), Vanadium (V), Tin (Sn)