Best Low Protein Cat Food | FOX31 Denver

Which low protein cat food is best?

Switching your cat to a low-protein diet isn’t a matter of preference—it’s a matter of health. Cats are omnivores, which means they can’t get the nutrients they need to live a healthy life anywhere other than from meat. As such, your cat’s protein intake should only be reduced when absolutely necessary and under your veterinarian’s supervision.

The best low protein cat food is Royal Canin Kidney Support Dry Cat Food. It requires a prescription and is ideal for kidney-related issues.

What to know before buying low protein cat food


You should always consult your vet before changing your cat to a low-protein diet, but this does not mean that low-protein cat foods require a prescription.

However, the best ones do. These prescription foods were carefully formulated by veterinarians rather than cat food companies, so you can trust that they contain the nutrients your sick cat needs to recover. The only downside is that they cost more than over-the-counter foods.

Types of cat food low in protein

Low protein cat food comes in three types.

  • dry Foods are the most popular because they tend to be more expensive. It also has a much longer shelf life than other types of foods. The disadvantages of dry foods are the lack of moisture and high carbohydrate contents. Cats don’t always drink enough water, and dry foods can exacerbate this. Meanwhile, carbohydrates are mostly unnecessary for cats and can cause additional health problems.
  • wet Food has two major downsides. They cost more and don’t last. However, high humidity is beneficial for weak kidneys, and cats tend to refuse wet food less often than dry food.
  • raw Foods are another less frequently used option. Most of the options you find in stores are freeze-dried, so they won’t spoil, so some turn to making their own. Your vet can help you create a raw food meal plan that, ahem, meat Your cat needs low protein.


No matter what form your potential low-protein cat food takes, you need to think about how much you’re buying. Dry foods usually come in multi-pound bags. Common weights are 3 and 8 pounds. Wet foods come by the can, and you can often buy packs of six or 12.

What to look for in a high quality low protein cat food


Cats have taste buds just like us. If it’s time for your cat to switch to a low-protein diet, you’ve probably already established what kinds of foods she likes and doesn’t like. Use that as your guide when shopping. If your cat loves poultry or fish, choose a low-protein food with this flavor.

Don’t be discouraged if your cat doesn’t like the first few foods she tries. You will find one. You can also see if your vet has samples of prescription options to try before you buy.

Your cat’s age

Your cat’s age affects her general nutritional needs. For example, older cats need fewer calories. Most low-protein cat foods are intended for adult cats, but some are made with seniors in mind. If you have a kitten or your cat hasn’t quite reached adulthood and needs a low-protein diet, consult your veterinarian about the correct course of action.

How much can you expect to spend on low protein cat food

They can cost as little as $15 or as much as $80. Small packages usually cost no more than $25, while the average package costs between $30 and $40. The largest packages can easily top $50.

Common questions about low protein cat food

How much protein does a cat need?

a. According to PetMD, a healthy diet for an adult cat needs to be closer to 25% protein, while a healthy diet for a 12-year-old cat needs to be closer to 50% protein. Lowering these percentages too much can lead to malnutrition, so always consult your veterinarian before starting a low-protein diet.

Why do cats follow a low-protein diet?

a. The two most common problems that a low-protein diet can help are problems with the kidneys and liver.

What is the best low protein cat food to buy?

Top low protein cat food

Royal Canin veterinary diet for cats supports dry cat food

What you need to know: This prescription-only food is intended to improve kidney health.

What you will love: Its formula is energy dense, so your cat can get all it needs from a small amount of its meal. This type A (for aromatics) food is scented to help attract picky cats to eat. Additional benefits include fatty acids and antioxidants, plus it’s also low in phosphorus.

What you should consider: It is among the most expensive available.

Where to buy: Sold by Amazon, Chewy, and PetSmart

Highest low protein cat food for the money

Best Evanger Food for Dogs & Cats Premium Low Fat Vegan Dinner for Dogs and Cats

Evanger Dog & Cat Food is an excellent low-fat vegetarian dinner for dogs and cats

What you need to know: This formula focuses on fruits and vegetables to get nutrients for your cat.

What you will love: It contains not less than 7% of the protein obtained from the use of eggs. It’s full of moisture, which makes it beneficial for cats who don’t drink enough. It does not require a prescription, and it is among the most affordable cat foods.

What you should consider: It spoils quickly once opened, so if your cat has a small appetite, she may not be able to use the entire can.

Where to buy: Sold by Amazon and Chewy

Worth checking out

Purina Pro Plan Best Veterinary Diet for Kidney Function NF Early Care Adult Cat Formula Dry Food for Cats

Purina Pro Plan Kidney Function NF Early Care Veterinary Diet Adult Formula Cat Dry Food for Cats

What you need to know: This is another great prescription-only dry food, but for less money.

What you will love: On top of being low in protein levels, it’s also phosphorus-restricted and full of omega-3 fatty acids. It is also packed with antioxidants and has a moisture level of 12%. There is also a dry and wet version of this food with lower protein levels.

What you should consider: Some buyers have had problems with their cats liking them at first, but later stop eating them.

Where to buy: Sold by Amazon, Chewy, and PetSmart

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Jordan C. Woika writes for BestReviews. BestReviews has helped millions of consumers simplify their purchasing decisions, saving them time and money.

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