Holistic Select Natural Dry Dog Food Large & Giant Breed Chicken Meal & Oatmeal Recipe is specially formulated natural dry dog food for large breed dogs with larger kibble for larger mouths and our unique Digestive Health Support System, including active probiotics, healthy fiber and digestive enzymes. When combined with our other high quality, natural ingredients, this recipe supports the absorption and utilization of vital nutrients throughout your dog’s entire body. Your dog will look and feel healthy from the inside out. Antioxidant-rich superfoods: Supply natural antioxidants that support cellular health. Natural ingredients: Increase variety of good bacteria in the gut to enhance digestion & promote regularity. Optimal levels of calcium & phosphorus maintain bone strength.