-->What are the health benefits of iron? Iron is essentially critical to human life. It plays a central role in the hemoglobin molecule of our red blood cells where it transports oxygen from the lungs to the body’s tissues and carbon dioxide from the tissues to the lungs. It also functions in several key enzymes in energy production and metabolism, including DNA synthesis. (Murray, Pizzorno, & Pizzorno, 2005). Iron helps to strengthen the immune system, improve fatigue and en