NutriSource PureVita Grain-Free Duck & Green Lentils Dog Food (4 lb) – (Same as the 12 lb formula above) A smaller bag of the limited-ingredient dry dog food featuring duck and green lentils. Ideal for trying out or for small dogs, this grain-free recipe provides the same benefits of high-quality duck protein and fiber-rich green lentils for a healthy digestive system. It’s formulated to be gentle on dogs with food sensitivities while delivering full nutrition, including supportive nutrients for joint health, skin and coat condition, and a robust immune system. With its mouthwatering duck flavor and absence of grains, soy, or corn, it’s a great option for maintaining your dog’s health and happiness in a simplified diet.