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10 Best Diet Cat Foods

It's no secret that our kitties would eat as much good food as we let them.

However, if your cat has been gaining weight, your veterinarian may be worried. Weight management is critical for cats, despite your cat's protests.

Your cat's body may not require as much food as it used to after being spayed or neutered, as well as with the onset of aging.

So, if you're looking for a calorie-light diet to feed your cat, here are %product_count% of the best diet cat foods we could locate. Here are BestForPets' (bestforpets.org) thoughts.


Purina Indoor Healthy Weight Cat Chow – Best Value

  • Weight Control Type: Indoor
  • Calories: 358
  • Protein: 30%
  • Fat: 9.5%
  • Fiber: 4.7%
  • Moisture: 12%

In terms of value, we preferred the Purina Cat Chow Indoor Hairball & Healthy Weight Dry Cat Food. It’s inexpensive, healthy, and ideal for weight loss—we believe it’s the greatest cat food for weight loss for the money.

The increased fiber intake aids in the control of hairballs and the proper functioning of the digestive system. Per cup, this recipe has 358 calories.

The product’s guaranteed analysis is 30% crude protein, 9.5% crude fat, 4.7% crude fiber, and 12% moisture. Linoleic acid, calcium, phosphorus, and a variety of other vitamins and minerals are also present.

Even though medication will work for the majority of healthy adult cats, keep an eye out for allergic triggers. This cat food contains animal byproducts as well as wheat, maize, and soy. Always examine the label before making a purchase.


  • Specifically designed for indoor cats
  • Hairballs are under control.
  • Helps with digestion


  • It contains possible allergens.


Adult Hill’s Science Diet Perfect Weight

  • Adult Weight Management
  • Calories: 300
  • Protein: 36%
  • Fat: 8.5%
  • Fiber: 10%
  • Moisture: 8%

If money is no object and you want quality cat food, we recommend Hill’s Science Diet Adult Perfect Weight Chicken Recipe Dry Cat Food.

This outstanding formulation is a carefully crafted combination of nutrients designed to promote weight loss and muscle maintenance. This minimizes health problems and provides antioxidants to support a healthy immune system.

And one cup of this cat food includes 300 calories. 36% crude proteins, 8.5% crude fat, 10% crude fiber, and 8% moisture are assured. It also contains L-carnitine, acid, and vitamin E to strengthen the body.

The manufacturer claims that 70% of pets who take its product for 10 weeks lose weight. Despite the fact that this is a nutritional meal, the cats are captivated to the flavor of this recipe.

If your cat is sensitive to grains, you may want to explore elsewhere because this product includes gluten.


  • Over a 10-week period, 70% of pets lost weight.
  • Very low caloric intake
  • High protein content


  • Sensitivities may be triggered.


Blue Buffalo Weight Loss

  • Weight Management
  • Calories: 346
  • Protein: 30%
  • Fat: 10%
  • Fiber: 9%
  • Moisture: 9%

We enjoyed the Blue Buffalo Weight Control recipe since it has high-quality components. The first component is deboned chicken, so you know your cat is getting high-quality protein while only consuming half the calories.

To stimulate appetite, all Blue Buffalo recipes include antioxidant-rich LifeSource pieces. This recipe has 346 calories per cup. 30% crude protein, 10% crude fat, 9% crude fiber, and 9% moisture are assured.

For optimal health, it also contains magnesium, taurine, omega fatty acids, and L-carnitine. This product’s all-natural ingredients are free of by-products, maize, wheat, soy, and other chemical preservatives, which we appreciate.

However, it may not meet all dietary requirements, so carefully read the label before purchasing.


  • Bits from LifeSource
  • There are no byproducts.
  • There are no artificial ingredients.


  • A little costly


Dry Cat Food Iams ProActive Health Indoor Weight & Hairball Care

  • Indoor Weight and Hairball Control
  • Calories: 302
  • Protein: 30%
  • Fat: 13.5%
  • Fiber: 8.3%
  • Moisture: 10%

ProActive Health Indoor Weight & Hairball Care by Iams Dry Cat Food is an excellent choice for weight control and hairball reduction.

This product promotes a healthy metabolism in your cat. To deliver a good dosage of protein, they use chicken as the first component.

Each cup of the finest cat food for weight reduction recipe contains 302 calories. The product’s assured analysis is 30% grade protein, 13.5% crude fat, 8.3% crew fiber, and 10% moisture.

It contains beet pulp and produces a fantastic fiber combination to eliminate hairballs and support a healthy digestive tract. This product also contains L-carotene, which aids in fat burning and increases your cat’s metabolism.

The only thing we didn’t like is that the protein content is a tad low considering how few calories are in each serving.


  • Encourages a healthy metabolism
  • Fiber blend fortified
  • Aids digestion


  • Protein deficient


Purina Pro Plan Weight Control

  • Weight Management
  • Calories: 437
  • Protein: 43%
  • Fat: 9%
  • Fiber: 5%
  • Moisture: 12%

Purina Pro Plan Weight Control Is a fantastic choice for controlling your cat’s weight. The overall goal is to promote healthy, lean muscle mass while lowering the necessary weight.

This formula is a high-protein option, featuring chicken as the first ingredient.

Per cup, this product has 437 calories. This food has 43% crude protein, 9% fat, 5% fiber, and 12% moisture.

Because of the high calorie content, it may not be suitable for all situations, therefore consult your veterinarian first.

This dish has a lot less fat than previous recipes. It also contains probiotics to aid digestion and immunity. It has 600 million live CFU of natural prebiotic fiber, which aids in the growth of healthy gut bacteria.


  • High protein content
  • 20% less calories
  • 600 million viable CFUs


  • In rare circumstances, the calorie count may be too high.


Fat Cats in Natural Balance

  • Weight loss type
  • Calories: 320
  • Protein: 35%
  • Fat: 9.5%
  • Fiber: 9%
  • Moisture: 10%

Natural Balance Fat Cats dry cat chow is specifically designed to help our bulky kittens lose weight. The cost is reasonable for most people, and the recipe is delicious.

This recipe contains low-calorie kibble while providing your cat with all of the nutrition they require.

Per cup, this recipe has 320 calories. This dish has a guaranteed analysis of 35% crude protein, 9.5% crude fat, 9% crude fiber, and 10% moisture.

It also contains a high concentration of omega fatty acids and taurine, which provide overall body support.

This product also has some good elements that seem to entice the taste buds. To mention a few, it contains chicken meal, salmon meal, pea protein, and garbanzo beans.

This mixture is excellent for overweight cats, and the business backs it up with a money-back guarantee.


  • Guaranteed 100% satisfaction
  • The first component is real chicken.
  • Reasonable cost


  • It will not work for all cat diets.

How to Choose the Best Cat Foods for Weight Loss

Why Is a Healthy Cat Weight Important?

Keeping your cats at a healthy weight may not appear to be a significant concern at first. After all, who doesn’t adore a chubby large cat?

Even while it’s cute to squeeze their fluff balls, it’s essential to help them maintain a healthy weight for the rest of their lives.

This becomes more difficult as they grow older and become less active. Also, after being spayed or neutered, cats tend to gain weight.

Obesity Causes Health Problems in Cats

When your cat is obese, you may encounter a number of issues. These issues may emerge gradually over time, or they may appear suddenly.

Some problems necessitate treatments, medications, and other potentially costly management approaches. It may also shorten your cat’s lifespan.

Among these health conditions are:

  • Diabetes
  • Heart attack
  • Infections
  • Stones in the urinary bladder
  • Lipidosis of the liver
  • Osteoarthritis
  • Hypertension

Weight Gain in Spayed or Neutered Cats

Weight gain is fairly typical after your cat has been spayed or neutered. This is because these operations slow down a cat’s metabolism, causing body fat to be dispersed throughout the body, particularly in the abdomen.

When a cat is fixed, a considerable proportion of their body weight gravitates towards their iconic fat pouch on their tummies.

Even while some weight gain is to be expected, it is very easy for your cat to gain weight. If their activity levels are also declining, it is critical to have a grasp on providing extra calories.

Scheduled Feeding vs. Free Feeding

Free feeding is the practice of placing food in a bowl and allowing your cat to eat whenever they want. Scheduled feedings are scheduled at specified times throughout the day and are routine.

Free feeding is not a smart idea if you want to put your cat on a diet. In terms of caloric consumption, there are no restrictions. Scheduled feedings establish a routine and allow you to closely monitor your cat’s exact intake.

Cat Weight Management

There are various factors that come into play when it comes to controlling a wait. Obviously, one of the main reasons manufacturers create these recipes is to cut calories. Certain nutrients can increase metabolism while decreasing weight.

  • L-carnitine is a molecule that is produced in the brain, liver, and kidneys. It improves the body’s conversion of fat into energy.
  • Fiber – Fiber helps to speed up and regulate the digestive tract, keeping it from becoming sluggish.
  • Prebiotics and Probiotics – Prebiotics and probiotics complement each other. Prebiotics build the groundwork in the gut for probiotics to thrive and produce healthy gut bacteria.
  • High protein – If your cat is losing weight, they must maintain their lean muscle mass. When calories are reduced in a meal, protein is often increased to ensure that your cat gets enough protein to rebuild their muscles.

It’s best to talk to your vet about your cat’s weight loss objectives so you can locate the ideal diet for him.


Overall, BestForPets (bestforpets.org) recommends Adult Hill’s Science Diet Perfect Weight as our top pick.

It is specifically designed to help your tubby kitty lose weight, yet the recipe is not lacking in nutritious value. It also comes within a reasonable price range that most families can afford.

However, if you want to save as much money as possible on the best diet cat foods during this diet session, consider Purina Cat Chow Indoor Hairball & Healthy Weight Dry Cat Food.

It’s inexpensive, and it controls hairballs by giving a proper dosage of fiber.

Regardless of whether of these delectable recipes piqued your interest, the one you chose should assist your kitty lose weight as needed.

We’re not even going to tell them they’re on a diet—it’ll be our little secret.

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Dr. Deborah Fletcher

Deborah R. Fletcher, DVM, is a skilled veterinarian with more than 15 years of experience dealing with companion and exotic animals. She has experience caring for a variety of animals, including household cats and dogs, reptiles, birds of prey, and even primates. Dr. Fletcher is a valuable part of the BestForPets team, where she contributes to their aim of providing pets and their owners with the finest possible treatment and services.

Veterinarian (DVM) Dr. Deborah Fletcher


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