Fe SOD, or iron superoxide dismutase, is an enzyme that plays a crucial role in protecting cells from oxidative stress. It catalyzes the conversion of superoxide radicals, which are harmful byproducts of cellular metabolism, into less harmful molecules like hydrogen peroxide and oxygen. This process helps maintain cellular health and function. Fe SOD is found in various organisms, including bacteria, plants, and animals. It is particularly important in mitochondria, where energy production occurs, as these organelles are significant sources of superoxide radicals. By mitigating oxidative damage, Fe SOD contributes to overall cellular longevity and resilience.