Essential dietary mineral, required by the human body to support its bio chemical processes are sixteen in number. Those which play important roles in the bio logical processes are potassium, chloride, sodium, calcium, phosphorus, magnesium, zinc, iron, manganese, copper, iodine, selenium, and molybdenum. Of these, table salt provides sodium and chloride, calcium needed for bones and teeth is derived from dairy products, greens, nuts and seeds, iodine is needed for the proper functioning of the thyroid enzyme, and iron which is needed for hemoglobin, is derived from fish, green leafy vegetables, eggs and dry fruits. Each dietary mineral though miniscule in quantity, play a very important role.