Rooibos leaves.
200 ml (about 7 ounces) of brewed Rooibos contains the following nutrients:
Iron (Fe) 0.07 mg, Potassium (K) 7.12 mg, Calcium (Ca) 1.09 mg, Copper (Cu) 0.07 mg, Zinc (Zn) 0.04 mg, Magnesium (Mg) 1.57 mg, Fluoride (F) 0.22 mg, Manganese (Mn) 0.04 mg, Sodium (Na) 6.16 mg.