Renal Cat Food

Specialised nutrition to support your cat's kidney health. Our range of renal cat food is formulated to help manage chronic kidney disease (CKD) while staying palatable for cats whose appetite may be reduced. Trusted prescription diets from Royal Canin Veterinary Diet and Hill's Prescription Diet, including Royal Canin Renal Support and Hill's k/d, are low in phosphorus with moderate, high-quality protein to help reduce the workload on the kidneys. Available in wet and dry forms to suit your cat's preference and hydration needs.

Renal diets are therapeutic foods and usually require a veterinary prescription. Always consult your vet before starting one, particularly if your cat has other health conditions.

What Is Renal Cat Food and How Does It Work?

Renal cat food is a therapeutic diet designed to support kidneys affected by chronic kidney disease. It works mainly by restricting phosphorus, which helps slow the progression of kidney damage, and by providing moderate amounts of high-quality, highly digestible protein to reduce the build-up of waste products the kidneys must filter. These diets also typically control sodium, add omega-3 fatty acids, and support potassium levels and acid balance. The goal is to ease kidney strain and help maintain quality of life, which is why these foods are fed under veterinary guidance rather than chosen like a standard cat food.

How Renal Cat Food Supports Cats With CKD

For cats with chronic kidney disease, the right diet is one of the most effective ways to support kidney function alongside veterinary care. Renal formulas aim to reduce the workload on the kidneys, support appetite and bodyweight in cats that may be eating less, and supply the energy and nutrients needed to maintain vitality. Because cats with CKD often eat poorly, these diets are formulated with appealing textures and aromas to encourage eating. Renal food is typically needed by adult and senior cats diagnosed with kidney disease, and your vet can confirm whether it suits your cat, especially if other conditions are present.

Wet or Dry Renal Food: Which Should I Feed?

Both wet and dry renal diets are formulated to the same therapeutic standards, so the choice often comes down to hydration and preference. Wet renal food has a high moisture content, which helps keep CKD cats hydrated and eases the workload on the kidneys, making it a strong choice for cats that do not drink much. Dry renal food is convenient, easy to store and helpful for free-feeding or fussy cats that prefer kibble. Many owners feed a combination of both. Your vet can advise the best balance for your cat, and fresh water should always be available regardless of which you choose.

How Do I Transition My Cat to Renal Cat Food?

Introduce renal cat food gradually over 7 to 10 days, slowly increasing the proportion of new food mixed with the current food to avoid digestive upset. Cats can be resistant to diet changes, so go slowly and let your cat adjust at their own pace. Warming wet food slightly can make it more aromatic and appealing. Watch for changes in appetite or behaviour during the switch, and contact your vet if your cat refuses to eat or if any issues arise.

Feeding and Storage

Feed according to your veterinarian's guidance, usually based on your cat's weight and stage of disease. Wet food can be gently warmed to enhance aroma and encourage eating, while dry kibble is served as is. Refrigerate opened wet food and use it within the timeframe on the packaging, and store dry food in a cool, dry place with the bag sealed. Always keep fresh water available, as good hydration is one of the most important parts of caring for a cat with kidney disease.

Explore the Range

Browse our full range of renal and kidney-care nutrition, including wet, dry and prescription diets, to support your cat's health. If your cat is not yet diagnosed but you have concerns about their kidney health, speak to your vet before changing their diet.