Origin and history
Iron is one of the most important minerals for life, found in nature, plants, animals, and humans. Its vital role was already known in ancient times: the Greeks and Romans recommended eating iron-rich foods to strengthen the blood and boost vitality. Today, we know that iron is essential for the formation of red blood cells, oxygen transport, and energy production. Iron deficiency, known as iron deficiency anemia, is one of the most common deficiencies in the world.