Product Benefits Controlled Protein Levels Controlled levels of protein to help manage kidney workload. Controlled Mineral Levels Controlled levels of phosphorus and sodium to help support kidney health. Vital Nutrients Antioxidants, L-carnitine, and omega-3 fatty acids help support overall health and body condition in dogs. Grain-Free Made without the grains many pet parents choose to avoid. Delicious Taste A therapeutic diet made with wholesome ingredients, plus a great taste to support a healthy appetite. Blue Natural Veterinary Diet KS Kidney Support Formula Canine 22 lb Bag. I do not receive this product or any others in exchange for this article, I do get a commission for readers clicking the buy now links which helps to differ the cost of hosting this blog and I sincerely hope this article site helps you with your search for Vet Approved Rx products.