Nulo Challenger Alpine Ranch Beef, Lamb, & Pork Dog FoodNulo's Challenger Alpine Ranch Beef, Lamb, & Pork Recipe Dog Food is made from ethically sourced ingredients. Nulo prides itself on choosing sustainability to give the world around us a chance to heal and renew. and believes peak nutrition doesnt have to be at the expense of our environment. FEATURES AND BENEFITS Low glycemic organic ancient grains GanedenBC30 probiotic advantage for digestive & immune support Lower carbohydrates Omega 3 and Omega 6