Organic minerals are protected with a protein molecule to increase utilization, support the immune system, hair coat and reproductive health. The use of oxides, such as zinc oxide, is not as absorbable as mineral sulfate, like zinc sulfate. In many instances, the trace mineral can be chelated to an amino acid for better absorption. At Annamaet, we know the importance of trace minerals in overall health, so we go the extra mile with our premium multi-mineral complex made with chelates. These chelated minerals are listed on the label as proteinates.