Minerals are used to build and repair the body. The body cannot produce them, so you must get these nutrients by eating plants grown in mineral rich soil or meat from animals that eat such plants. Standard medical knowledge suggests that there are seventeen minerals necessary for bodily function. Some sources place the number of required minerals to be higher at forty or even up to sixty. No matter which number you recognize, only eight occur regularly in the food we eat. There are two basic categories of minerals: macro and trace minerals. The most important of the macro ones are: calcium,chloride, magnesium, phosphorus, potassium, sodium and sulfur. The most important trace minerals are: chromium, cobalt, copper, fluoride(this is not the fluoride in your water),iodine, manganese, molybdenum, selenium and zinc.