10 Weird But True Facts About Common Vitamins & Minerals

4. Iron - The Oxygen Transporter

Iron is a key component of hemoglobin, the protein in red blood cells responsible for transporting oxygen throughout the body. Its role in energy metabolism and immune function is equally critical. However, iron's story is not without its quirks. The body tightly regulates iron levels, as both deficiency and excess can lead to serious health issues. Iron deficiency is the most common nutritional disorder worldwide, often resulting in anemia. On the flip side, too much iron can cause oxidative stress and damage organs. Understanding the delicate balance of iron in the body reveals its complex and essential nature.