Why is Prescription Diet® brand pet food sold only from veterinarians?

Prescription Diet brand pet foods are specially formulated to address certain health conditions that can develop in pets. Veterinarians are trained medical experts who care about their patients. For this reason, it's important to us that a veterinarian remains involved in your pet's continual care and nutritional management. If a pet's medical condition develops or changes over time, veterinarians can address the condition and any concerns.  more