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Iron Iron is a trace mineral needed to make hemoglobin, the protein needed to carry oxygen throughout the body. Hemoglobin gives red blood cells their color, and stores most of the body s iron supply.Iron is also stored in muscle tissue, and helps supply the muscles with the oxygen needed to make them contract.Although iron is a trace mineral, it is extremely important, because a deficiency in this nutrient leads to a shortage of red blood cells, a condition known as anemia.Anemic individuals do not have an adequate supply of oxygen in their body, which leaves them tired, pale, and short of breath.ron is also stored in muscle tissue, and helps supply the muscles with the oxygen needed to make them contract. Although iron is a trace mineral, it is extremely important, because a deficiency in this nutrient leads to a shortage of red blood cells, a condition known as anemia.
calcium. major mineral that is an integral component of bones and teeth. calcium levels are maintained in the blood at all times; calcium is also necessary for normal nerve transmission, muscle contraction, healthy blood pressure, and blood clotting.race mineral. primary functions of iron is to assist with the transportation of oxygen in blood. iron is a cofactor for many of the enzymes involved in the metabolism of carbohydrates, fats, and proteins. also part of antioxidant enxyme system that fights free radicals.