Each PMI Nutrition1 Pet Food has been developed and proven through extensive research to exceed the recommended nutritional levels established for your pet. Each product has to meet PMI Nutrition's stringent standards for quality, nutrition, palatability and digestibility. PMI Nutrition's formulas are complete and balanced for all breeds and all life stages of your dog or cat. FRESH Chicken or Lamb - Our #1 Ingredient! Exclusive1 Pet Foods use chicken or lamb that has never been frozen. Pets love our fresh meat formulas. These fresh meats give your pet a better tasting diet that is more nutritious, has higher digestibility and is lower in ash content. That is why it's our #1 ingredient. Fresh chicken and lamb are excellent sources of high quality protein for building and maintaining strong muscles. Chicken is also an excellent source of Omega-6 fatty acids, which help promote a shiny coat and help maintain a healthy immune system. Exclusive Chicken & Rice and Lamb & Rice Formulas also include the highest quality Whole Grain Brown Rice, Oatmeal and Egg protein for their wholesome health benefits. Info from Purina