Ferric ammonium citrate is a chemical compound that consists of iron, ammonium, and citrate ions. It is often used as a source of iron in various applications, including dietary supplements and food fortification. This compound helps to prevent and treat iron deficiency anemia by providing an easily absorbable form of iron. In addition to its nutritional uses, ferric ammonium citrate is also utilized in laboratory settings, particularly in microbiology. It serves as a growth medium for certain bacteria and is involved in various biochemical processes. Its unique properties make it valuable in both health and scientific fields.