Why is iron supplementation important? Many people, including women of child-bearing age, may not get enough iron through diet alone. Supplementing with iron helps support many healthy processes in the body: Iron is a significant nutrient for energy and stamina, which affects physical work performance, immunity, body temperature, and cognitive functioning. Critical to the entire process of respiration, iron helps form hemoglobin in red blood cells and is used to transport oxygen to cells throughout the body.Why should someone use Iron Complex formula? It's a unique formulation that provides many advantages: It combines non-heme iron with heme iron from liquid liver extracts, so it is gentler on the stomach than other iron supplements. The energizing ingredients included in Iron Complex help fight occasional fatigue while providing the body with essential nutrients for healthy blood and cell maintenance. Liver extract contains heme iron, the most easily absorbed form of iron. Vitamin C is a water-soluble vitamin that aids in iron absorption, transport, and storage.