One out of 3 cats may develop kidney disease in their lifetime. This disease can be difficult to spot in cats, as signs may not be visible until 75% of kidney function is lost. However, the SDMA test can detect kidney disease months and even years earlier, when as little as 25% of kidney function is lost.Kidney disease is more common in advanced age, but with early detection & intervention, kidney disease can be stabilized. If your cat's age is advanced, ask your veterinarian about the SDMA test for early detection of kidney disease. Feeding the right nutrition early in the disease can help transform the lives of cats with kidney disease. Hill's Prescription Diet k/d Early Support is a food specifically designed to meet the needs of cats with early kidney disease. The nutrition of k/d Early Support has been clinically shown to sustain kidney function and healthy body condition in cats with kidney disease. Why We Love ItControlled phosphorus & sodium to protect kidney functionHigh-quality protein providing 160% of daily essential amino acid requirementsHigh protein digestibility (greater than 90%)Antioxidants to help defend cells from free radical oxidation, promoting a healthy immune systemOmega-3 fatty acids from fish oil to help fight inflammationHigh level of L-carnitine to support muscleWith S+OXSHIELDTM - Formulated to promote a urinary environment that reduces the risk of developing struvite and calcium oxalate crystals