Minerals make up 60-80% of all the inorganic (noncarbon-containing) material in the body and fall into two categories: macrominerals and microminerals. There are seven macrominerals – also known as major or bulk minerals: calcium, chloride, magnesium, phosphorus, potassium, sodium and sulfur. They are present in virtually every cell in the body. In fact, the human body needs at least 100 milligrams (mg) of each every day – just for normal functioning and well-being. Microminerals, commonly called trace minerals, are required in smaller quantities – typically less than 100 mg per day. Still, some are considered “essential” for good nutrition. Essential microminerals include chromium, copper, fluoride, iodine, iron, manganese, molybdenum, selenium and zinc. Dietary minerals serve a life-sustaining function by helping the body operate properly and remain strong. Minerals not only build skeletal and soft tissues, they also regulate processes – such as heartbeat, normal blood clotting, internal fluid pressure, nerve reactions, impulse transmissions, muscle contractions, oxygen transport, acid-base balance to keep the body pH neutral, and enzyme and hormone systems.