Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. First introduced by French physician P. Blaud of Beaucaire in the 1880s, as a treatment for patients with anemia, iron supplements are mainly used to treat or prevent low iron levels in blood, or during pregnancy. Iron itself is vital to most life forms, being an integral part of many proteins and enzymes, involved in oxygen transport and regulation of cell growth. Recently, Swiss scientists found a correlation between fatigue and iron deficiency. Learn more about iron pills and their health effects in this book.