PROZYME is a UNIQUE, ALL NATURAL, HIGH POTENCY, plant derived ENZYME SUPPLEMENT that will unlock the nutrients contained in your pet's food. PROZYME is scientifically proven to increase the absorption of essential nutrients and fatty acids, especially Zinc, Selenium, Vitamin B-6, Linoleic Acid and Eicosapentaenoic Acid (EPA-Omega 3) from pet food. Testing was completed at numerous laboratories, including those of the Mayo Clinic. It is the only enzyme formula on the market today that does not get destroyed by the acid in the stomach.