Chronic kidney disease (CKD) is the most common disease of senior cats, and nutritional management plays a central role in slowing progression and maintaining quality of life.
Feline CKD management represents one of the clearest examples of where nutritional intervention dramatically improves welfare outcomes over what would otherwise be progressive deterioration. Cats in the later stages of unmanaged CKD experience nausea, lethargy, hypertension, and eventually uremic crisis - a prolonged welfare decline. Phosphorus restriction through prescription renal diets demonstrably slows disease progression and extends comfortable life, improving both welfare and longevity. The challenge is palatability - renal diets are not always accepted by cats that have preferences for their usual food - creating a welfare tension between dietary compliance and the stress of food rejection. Individualized approaches that prioritize food acceptance alongside phosphorus restriction optimize welfare better than rigid dietary adherence.