Disodium stannous citrate is primarily used in the food and beverage industry as a stabilizer and antioxidant. It helps preserve the color, flavor, and nutritional quality of canned and packaged foods by preventing oxidation. Additionally, it is employed in toothpaste formulations for its ability to reduce dental plaque and prevent tooth decay, acting as an effective antimicrobial agent. In the medical field, it is utilized in certain radiopharmaceuticals for diagnostic imaging, aiding in the detection of specific conditions. Its chelating properties also make it useful in water treatment processes to control metal ions and improve water quality.