Inulin is an insoluble plant fructan, also known as a prebiotic, that stimulates growth of beneficial bacteria (probiotics) in the digestive system. It is harvested from plants such as chicory, dandelion, and Jerusalem artichokes.

Iron is an essential mineral and found in all body cells. It is vitally important for red blood cells to transport oxygen throughout the body. Our iron is specially bonded (chelated) with amino acids to enhance absorption and assimilation. Once absorbed from the diet, iron it is stored in the body and seldom lost. As a result, the requirement for iron only increases drastically during periods of unusual blood loss, such as in cases of parturition, major surgery, injury, or severe parasitic infection or gastrointestinal disease. Pets fed a diet high in cereal grains such as corn and wheat may not be able to fully absorb dietary iron. AAFCO establishes minimum and maximum levels of iron.