Which mineral is crucial for oxygen transport in the body?

The mineral that plays a crucial role in oxygen transport in the body is iron. Iron is a fundamental component of hemoglobin, the protein in red blood cells responsible for binding to oxygen in the lungs and carrying it to tissues throughout the body. Without adequate iron, the body cannot produce enough healthy red blood cells, potentially leading to anemia, which can result in fatigue and weakness due to insufficient oxygen delivery to tissues.

Calcium, zinc, and potassium, while important for various bodily functions, do not have a direct role in oxygen transport. Calcium is essential for bone health and muscle function, zinc plays a vital role in immune function and wound healing, and potassium is crucial for maintaining fluid balance and proper function of muscles and nerves. However, none of these minerals are involved in the actual transport of oxygen within the bloodstream like iron is.