nutritional disorders
Overview of Minerals
Introduction
Sixmacromineralsare required by people in gram amounts. Four Water and Sodium Balance : Sodium, potassium, calcium, and magnesium Two accompanying Diagnosis : Chloride and phosphorus Daily requirements range from 0.3 to 2.0 g. Bone, muscle, heart, and brain function depend on these macrominerals. (See also Water and Sodium Balance .) Trace Minerals None Chromium Copper Fluorine Iodine Iron Manganese Molybdenum Selenium Zinc Dietary guidelines for trace minerals have been determined (see table Guidelines for Daily Intake of Trace Minerals ). All trace minerals are toxic at high levels; some minerals ( Trace mineral deficiencies (except for iodine, iron, and zinc) do not often develop spontaneously in adults on ordinary diets; infants are more vulnerable because their growth is rapid and intake varies. Trace mineral imbalances can result from hereditary disorders (eg, Hereditary Hemochromatosis , 