Which mineral is crucial for oxygen transport in the blood?

Iron is crucial for oxygen transport in the blood because it is a key component of hemoglobin, the protein found in red blood cells that binds to oxygen in the lungs and carries it to the tissues throughout the body. Each hemoglobin molecule can carry up to four oxygen molecules, and iron is essential for the formation of this protein. When iron levels are insufficient, the body cannot produce enough healthy red blood cells, which can lead to anemia, characterized by fatigue and weakness due to inadequate oxygen delivery to cells.

While calcium, iodine, and zinc are important for various bodily functions, they do not play a direct role in the transport of oxygen in the blood. Calcium is primarily involved in bone health and muscle function; iodine is crucial for thyroid hormone production; and zinc contributes to immune function and protein synthesis. Therefore, iron’s role in oxygen transport is unique and vital for maintaining overall health and energy levels.