They’ve been dumping iron into cereals a hell of a long time. We know iron is a necessary mineral, but not in this way. Did you know that we humans produce a hormone called hepcidin, its role is to prevent too much iron from being absorbed. However, in a now common genetic condition called iron overload (or technically Hemochromatosis), the body is unable to put the brakes on iron absorption and iron begins to build up in the tissues. Early symptoms are varied and include fatigue, abdominal pain

Iron: the most necessary metal in the world