Reward your dog with NUTRO™ Crunchy Treats With Real Mixed Berries. Our healthy dog snacks contain natural ingredients, such as whole grains and real blueberries, cranberries, and cherries, a known source of antioxidants. These premium dog treats also include no wheat or corn, and they contain no artificial colors, flavors or preservatives. They’re simply a healthy treat for dog training or a special snack.