Low Phosphorus Cat Food for Kidney Disease: Reviewed

Published: June 29, 2022

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Kidney disease is a prevalent disease among cats which, when contracted, the kidney loses its functions gradually and can be fatal if not promptly treated. Some pet parents do not realize their cats have contracted the disease until too late. Once the kidney is diseased, there will be a dangerous accumulation of toxic waste products in the cat’s body. However, after consulting a veterinarian, part of the treatment regimen is nutrition. Placing the cats on a low phosphorus and protein diet can help manage and control the disease progression. Also, the diet needs to be rich in fiber, antioxidants, and vitamins.

A veterinarian’s prescription is needed before using cat food for kidney disease, as a diet with low phosphorus and protein is not beneficial to healthy cats. With the huge number of companies in the pet industry, there are plenty of choices in the market. However, to ensure the well-being of the pets, it is essential to buy only quality food. This review will inform cat owners about the best low-phosphorus diet they can buy and place their diseased cats on.

Best Low Phosphorus Cat Food for Kidney Disease

Many low phosphorus cat foods are sold commercially in the pet industry for cats with kidney diseases, but selecting the best to feed your cats is important to A-Z. Therefore, our testers extensively tested various low phosphorus foods for their diseased cats and came up with the best four low phosphorus cat food suitable for cats with kidney diseases.

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A-Z-Animals Top Picks for Low Phosphorus Cat Food

  1. Hill's Prescription Diet k/d Kidney Care Chicken & Vegetable Stew
  2. Hill's Prescription Diet k/d Kidney Care Chicken & Vegetable Stew
    • Clinical approval
    • Increases the appetite of cats
    • Added vitamins and minerals
    • High quality protein
    Check Chewy Check Amazon
  3. Purina Pro Plan Veterinary Diets NF Kidney Function Advanced Care
  4. Purina Pro Plan Veterinary Diets NF Kidney Function Advanced Care
    • Quality at the best price
    • Controlled protein level
    • Need a prescription from a veterinarian
    • Added antioxidants
    Check Chewy Check Amazon
  5. Blue Buffalo Natural Veterinary Diet K+M Kidney + Mobility Support
  6. Blue Buffalo Natural Veterinary Diet K+M Kidney + Mobility Support
    • Contains real chicken
    • No grain
    • Contais glucosamine, chondroitin, and DHA
    • Cats love the taste
    Check Chewy Check Amazon
  7. Royal Canin Veterinary Diet Adult Renal Support E Loaf in Sauce
  8. Royal Canin Veterinary Diet Adult Renal Support E Loaf in Sauce
    •  Stimulates the cat's appetite
    • Contains antioxidants and omega-3 fatty acids
    • A controlled amount of protein
    • Energy-dense formula
    Check Chewy Check Amazon

Best Overall: Hill’s Prescription Diet k/d Kidney Care Canned Cat Food

We found Hill’s Prescription Diet k/d Kidney Care Canned Cat Food to be the best low phosphorus diet on the market right now. One of the most prevalent symptoms among cats with kidney disease is the loss of appetite. According to our testers’ observations, Hill’s Prescription Diet k/d Kidney Care canned cat food is the best cat food low in phosphorus and suitable for cats with kidney diseases. The food has clinical approval as having the ability to improve the lives of diseased cats.

The formulation of this food with Enhanced Appetite Trigger increases the appetite of the cats, thereby preventing muscle mass loss. The food is low in phosphorus and sodium content but high in vitamins and minerals needed to maintain a good state of health. The major downside our testers observed is the inability of the adult cats to eat the food comfortably due to the tiny size of the kibbles. Also, this means they could consume a large amount of the meal in one serving.

vitamins and minerals

Best Value for Money: Purina Pro Plan Vet Diets NF Kidney Dry Cat Food

Purina Pro Plan Vet Diets NF Kidney Dry Cat Food is a cat food low in phosphorus that gives quality at the best price. It has a low sodium level, a controlled protein level, and contains omega-3 fatty acids. The food meets the standard requirements for food used in controlling and managing kidney disease in cats. However, before you can purchase this food, there is a need for a prescription from your veterinarian. According to our testers, the overall health improved after placing their diseased cats on the diet. The presence of antioxidants in the food helps eliminate toxic radicals in the cats’ bodies.

Best Value for Money
Purina Pro Plan Veterinary Diets NF Kidney Function Advanced Care
  • Quality at the best price
  • Controlled protein level
  • Need a prescription from a veterinarian
  • Added antioxidants
Check Chewy Check Amazon

Premium Choice: Blue Buffalo Vet Diet Kidney + Mobility Dry Cat Food

Among the best low phosphorus cat foods prescribed to cat owners is the Blue Buffalo Vet Diet Kidney + Mobility Dry Cat Food, which is a premium choice and suitable for adult cats. The food has low phosphorus and sodium content with a controlled protein level, making it one of the best foods for cats having kidney problems. Chicken is the primary source of animal protein, and the food does not contain grain. Cats with problems with their kidneys and mobility are best placed on this diet.

The presence of adequate supplements supports the healthy growth of the cats. The food does not contain any poultry by-products, and it is packed with the necessary nutritional requirements such as glucosamine, chondroitin, and DHA. However, the major downside of using this product is its exorbitant fee, although the product is worth its price. Also, the food is not suitable for all varieties of cats as some cats refuse to eat the food. The phosphorus content of the food is between 03% and 0.7%, while that of sodium is 0.3%.

Premium Choice
Blue Buffalo Natural Veterinary Diet K+M Kidney + Mobility Support
  • Contains real chicken
  • No grain
  • Contais glucosamine, chondroitin, and DHA
  • Cats love the taste
Check Chewy Check Amazon

Best Appetite Stimulating: Royal Canin Vet Diet Renal Support Canned Cat Food

Apart from the food choices mentioned above, if you are looking for an alternative low phosphorus cat food, Royal Canin Vet Diet Renal Support Canned Cat Food is an option worth trying. Some cat food low in phosphorus contents are not palatable for cats, but Royal Canin is not such as it is suitable for different kinds of cats. Also, cats are known to lose appetite with kidney disease, but this food stimulates their appetite, thus, making them eat.

It contains antioxidants and omega-3 fatty acids, which are suitable for the general well-being of cats. The food also contains a low phosphorus level and a controlled amount of protein. The phosphorus content of the food is 0.44%, whereas that of protein is 30%. The major downside of the food is that it is not suitable for cats with poor dentition because of their inability to eat the morsel with ease.

Best Appetite Stimulating
Royal Canin Veterinary Diet Adult Renal Support E Loaf in Sauce
  •  Stimulates the cat's appetite
  • Contains antioxidants and omega-3 fatty acids
  • A controlled amount of protein
  • Energy-dense formula
Check Chewy Check Amazon

Choosing the Best Low Phosphorus Cat Food: What to Look For

When choosing low phosphorus cat food, there are some factors to consider which can help you make a good choice. They include price, type of food, and your cat’s disease stage.

Price

Your budget is a major determining factor when looking to buy low phosphorus food for your cat. The pricing of these foods largely depends on the brand and the ingredients used. A quick and easy research of the average prices of low phosphorus cat foods should help determine the best choice for you.

Type of Food

There are two major types of low phosphorus cat foods: prescription type and non-prescription type. Generally, prescription foods tend to be more expensive than non-prescription meals. However, they have to be prescribed by a vet and also have more calibrated proportions of ingredients.

Disease Stage

If your cat’s kidney disease is still in the early stages, you could go for non-prescription recipes that fit the bill. However, if the disease stage is advanced, it might be better to get prescription low phosphorus meals from a vet due to their carefully selected and prepared ingredients.

The Different Types of Low Phosphorus Cat Food: Pros and Cons Compared

When deciding the best low phosphorus food for your cat, you should know that there are different types. These types can be classified based on their nature and whether or not they require a prescription.

Based on nature:

  • Wet Low Phosphorus Cat Food – This type of low phosphorus cat food comes in canned packages and doesn’t need to be refrigerated unless opened.
  • Dry Low Phosphorus Cat Food – This type usually comes in bags and is the more common type.

Based on whether or not they require a prescription:

  • Prescription Type Low Phosphorus Cat FoodThis type of cat food contains carefully calibrated amounts of ingredients in the recipe. You need a veterinarian’s prescription to be able to purchase these types of cat food.
  • Non-Prescription Low Phosphorus Cat Food – This type of cat food is generally not intended for cats with kidney disease. However, due to their ingredient formulation, they are eligible for use in such conditions.

Let’s look at the pros and cons of each type:

Prescription Type Low Phosphorus Cat Food

ProsCons
These have specially formulated proportions of ingredients beneficial to cats with kidney disease.They tend to be more expensive than most cat foods.
These are the best picks since you also get a professional’s opinion on them.You need to get a veterinarian’s prescription to purchase them.

Non-Prescription Type Low Phosphorus Cat Food

ProsCons
These could help you save money if you have more than one cat.You might not be able to decide on which choice would be the best for your cat.
They are easier to get since you don’t need a veterinarian’s prescription.

Wet Low Phosphorus Cat Food

ProsCons
These do not require you to refrigerate unless opened.They tend to be more expensive.
They hydrate your cat alongside the nutrition they provide.They tend to get spoilt faster once opened.
Their flavor is usually better.

Dry Low Phosphorus Cat Food

ProsCons
They are affordable.They leave your cat dehydrated.
They can last longer.Their protein content is usually low.
They are beneficial for cats with dental problems.

Verified Review: Users’ Experience

Many users agree with our view of Hill’s Prescription Diet as the best low-phosphorus cat food on the market. Sharing the experience of a user of the cat food, he said, “I wish I had prior knowledge of this product. I fed my cats grain food for years, and they are all suffering from kidney disease, which prompted the visit to the vet. The vet recommended this cat food and warned that the cats might not like it. However, to my utmost surprise, all of my cats like the food; they usually lick their bowls clean. I am so happy. Also, my cats are starting to feel much better since I introduced them to the food. The food was a God sent.”

Alternative cat food for kidney disease control is the Royal Canin Vet Diet Renal Support Canned Cat Food. Based on the review of a satisfied product user, she said, “Max, my young male cat, is suffering from kidney disease and had been on kidney-friendly food for a while. However, after trying different cat food varieties for months, I arrived at a satisfactory answer after trying this product. When served, max gladly eats this food, unlike the other types of food, and since then, I have been buying it for him. I was relieved after max started eating all the food when served because of the fatality of the kidney disease. Although the food is expensive, I will not stop buying it for him as he is worth it – he is my son.”

Conclusion

Kidney disease can result in the death of cats if not promptly and adequately managed. Apart from using medications to treat and control the disease, many veterinarians usually advise cat owners to switch their cats’ foods to low phosphorus variants. The adoption of low phosphorus food relieves the kidney of the massive workload of excreting phosphorus since it is the primary excretory organ for the mineral. Ensure to seek veterinarian advice before switching your cat’s food to low phosphorus types as it might not be beneficial for healthy cats.

About the Author

Abdulmumin is a pharmacist and a top-rated freelance writer on Upwork. He can pretty much write on anything that can be researched on the internet. However, he particularly enjoys writing on health, technology and animals. He is inquisitive and currently aspires to become a software engineer. He loves animals, especially horses and would love to have one someday.

Low Phosphorus Cat Food for Kidney Disease: Reviewed FAQs (Frequently Asked Questions) 

What type of food is bad for cat kidneys?

While dry food has its own benefits, it could cause some harm to the cat, one of which includes kidney deterioration. due to its ability to cause chronic dehydration if the cat doesn’t have enough water, it could lead to accumulated stress on the cat’s kidneys.

What are the symptoms of a cat experiencing severe kidney failure?

The cat could start to experience weight loss due to a loss in appetite. it could also show symptoms of diarrhea. some extreme signs that could occur include seizures or circling. these extreme symptoms are a result of the buildup of blood toxins which could cause death.

Is phosphorus beneficial to cats?

Yes, it does have its benefits. However, their intake must not pass the recommended proportion as it could cause kidney disease.