Hill's Prescription Diet d/d Food Sensitivities Potato & Salmon Formula Dry Dog Food is specially formulated by Hill’s nutritionists and veterinarians to support your dog’s food sensitivities Formulated to help avoid reactions to food Limited ingredient nutrition with single animal protein Free from soy protein Helps maintain a healthy skin barrier; Hill’s Prescription Diet is the #1 US Vet Recommended therapeutic pet food — consult with your vet to make sure Prescription Diet d/d is the right food for your dog