For feeding on pastures and ranges where grain, forage and water is deficient in sodium chloride and the six basic mineral elements that promote growth, reproduction, milk and wool production, and the general well-being of livestock. Scientifically formulated to provide a salt with six basic trace minerals commonly supplemented in livestock diets-cobalt, copper, iodine, iron, manganese, and zinc. iOFIXT T-M Trace-Mineralized Salt is fortified with nutritional iodine provided by calcium periodate (Pentacalcium orthoperiodate or PCOP). PCOP is a Morton Salt exclusive. Most iodine sources are water-soluble and tend to leach from blocks exposed to high humidity or rain. PCOP is insoluble and does not leach. For all classes of Cattle, Sheep, and Horses.