The Purina Pro Plan Veterinary Diets NF Kidney Function formula offers a moderate level of high-quality protein and limited phosphorus to support kidney function. It contains omega-3 fatty acids (EPA and DHA) and antioxidants for better health. With controlled sodium levels, it is enriched with B vitamins and potassium to compensate for losses caused by polyuria. Designed to be non-acidifying, it provides high energy density to meet caloric needs while offering a delicious taste.