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10 Best Cat Foods for Weight Loss in 2021 – Reviews & Buyers Guide

fat shorthaired cat lying on the ground

Is your cat struggling with weight? Well, for starters, you cannot enroll them in the gym. However, you can change their diet to help them lose weight.

Weight gain can be dangerous in cats as it makes them prone to health conditions like heart disease, type 2 diabetes, urinary tract disease, and osteoarthritis. In addition, it reduces your pet’s lifespan, which definitely is not a good thing. Bottom line, your cat needs to lose weight. But how?

If you are thinking of reducing their food quantity and putting them on an extreme diet, you are wrong. This will only cause more health problems like fatty liver disease. Instead, your cat should lose weight slowly and steadily. And the best way to achieve this is by introducing your cat to food for weight loss.

To help with that, we’ve reviewed the 10 best cat food for weight loss.

A Quick Comparison of Our Favorites (2021 Update)

Rating Image Product Details
Best Overall
Winner
Nulo Grain-Free Dry Cat Food Nulo Grain-Free Dry Cat Food
  • Good nutrition
  • Great for indoor cats
  • Prevents tartar and plaque
  • Best Low-Calorie Cat Food
    Second place
    Hill’s Science Diet Dry Cat Food Hill’s Science Diet Dry Cat Food
  • Affordable
  • Promotes healthy digestion
  • All ingredients are safe for cats
  • Best Diet Cat Food
    Third place
    Blue Buffalo Weight Control Adult Dry Food Blue Buffalo Weight Control Adult Dry Food
  • Natural ingredients
  • Antioxidants strengthen the cat’s immune system
  • Cold-formed LifeSource Bits from Blue retain potency
  • Best Cat Foodfor Kittens
    Purina One Healthy Kitten Formula Purina One Healthy Kitten Formula
  • Easily digestible
  • Good nutritional content
  • DHA helps supports kittens’ brain and vision development
  • Best Cat Food for Overweight Cats
    Blue Buffalo Indoor Hairball Control & Weight Control Blue Buffalo Indoor Hairball Control & Weight Control
  • Fiber and protein promote healthy digestion
  • No by-product meals, wheat, corn, soy, or artificial flavors
  • The food helps with weight loss as well as hairball reduction
  • The 10 Best Cat Food for Weight Loss

    1. Nulo Grain-Free Dry Cat Food – Best Overall Cat Food for Weight Loss

    Nulo Grain-Free Dry Cat Food

    Quality: 4.9/5
    Proteins: 40%
    Fats: 17%
    Calories: 468kcal/cup
    Fiber: 5%

    Nulo Grain-Free Dry Cat Food takes the stand as the best overall cat food for weight loss. It is low in carbs, grain-free, rich in proteins, and has patented probiotics to fuel your cat into action.

    This recipe contains deboned duck, turkey meal, chicken meal, and deboned cod, constituting 82% of the proteins. Nulo has included high meat content and fewer digestible carbohydrates to balance the nutrition scale.

    In addition, this weight loss cat food has a patented BC30 probiotic, which helps with food digestion, metabolism, and healthy gut flora.

    Nulo grain-free cat food has low carbohydrates, which helps with weight management. Even though your feline is overweight, this food will ensure they retain their vitality. This will prevent your cat from respiratory diseases, kidney problems, and osteoarthritis.

    Pros
    • Prevents tartar and plaque
    • Grain-free recipe
    • Good nutrition
    • Great for indoor cats
    Cons
    • Less than pleasant odor
    • Higher fat content


    2. Hill’s Science Diet Dry Cat Food – Best Low-Calorie Cat Food

    Hill’s Science Diet Dry Cat Food

    Quality: 4.8/5
    Proteins: 31%
    Fats: 13%
    Calories: 300 kcal/cup
    Fiber: 6%

    Hill’s Science Diet is the best low-calorie cat food. This is because skilled veterinary nutritionists carefully formulated the diet to guarantee that cats stay healthy and content as they lose weight. Pet owners recommend it because weight changes are visible in 10 weeks!

    The formula contains essential nutrients and easy-to-digest ingredients for cats. They include whole chicken, wheat meal, rice, powdered cellulose, and corn gluten meal. All these ingredients have met stipulated requirements of nutrition and purity, so you need not worry about your cat.

    This diet is perfect for indoor adult cats between 1-6 years.

    Pros
    • Promotes healthy digestion
    • All ingredients are safe for cats
    • Affordable
    • Cats love the taste
    Cons
    • Inconsistent kibble size

    3. Blue Buffalo Weight Control Adult Dry Food – Best Diet Cat Food

    Blue Buffalo Weight Control Adult Dry Food

    Quality: 4.8/5
    Proteins: 30%
    Fats: 10%
    Calories: 346 kcal/cup
    Fiber: 9%

    Blue Buffalo Weight Control stands out as the best diet cat food. The kibbles are not only delicious but nutritious too. This chicken-and-rice cat food is designed for optimal health immunity, lean muscle maintenance, and weight management.

    It is made from real deboned chicken, a fine natural ingredient that will nourish your cat with high-quality proteins. With each serving, your cat gets 30% protein and only 10% fat. It is also rich in calories to help your feline achieve its ideal body weight.

    This dry food also contains wholesome fruit, vegetables, and grains. However, it does exclude poultry by-product meals, soy, wheat, corn, and preservatives.

    Pros
    • Antioxidants strengthen the cat’s immune system
    • Natural ingredients
    • Cold-formed LifeSource Bits from Blue retain potency
    • Great for kittens and cats with hairballs
    Cons
    • It is pretty expensive

    4. Purina One Healthy Kitten Formula – Best Cat Food for Kittens

    Purina One Healthy Kitten Formula

    Quality: 4.7/5
    Proteins: 40%
    Fats: 18%
    Calories: 462 kcal/cup
    Fiber: 2.5%

    Are you looking for the best cat food for weight loss in kittens? You just found it. Purina One healthy kitten formula is nutritious and delicious.

    The formula delivers the nutrients that kittens need, such as DHA, found in mothers’ milk. It helps with brain and vision development.

    This cat diet food has chicken as the main ingredient, a quality protein source for growing muscles. It is also packed with fish oil that is rich in omega fatty acids. Additionally, its 12% moisture content is highly digestible for your overweight kitten.

    Other ingredients in the crunchy cat kibble are real carrots, peas, vitamins, and minerals for a radiant coat and a robust immune system. Your little kitten will stay healthy and energetic as they lose the extra weight.

    Pros
    • Antioxidants provide crucial immune support
    • Good nutritional content
    • DHA helps supports kittens’ brain and vision development
    • Easily digestible
    Cons
    • Ingredients such as fish oil, soy, whole grain corn, and corn gluten are potential allergens for some cats


    5. Blue Buffalo Indoor Hairball Control & Weight Control – Best Cat Food for Overweight Cats

    Blue Buffalo Indoor Hairball Control & Weight Control

    Quality: 4.6/5
    Proteins: 30%
    Fats: 9%
    Calories: 349 kcal/cup
    Fiber: 8%

    Blue Buffalo has earned a spot in pet owner’s hearts by making high-quality cat food. The Indoor Hairball Control & Weight Control has rich formulas for weight loss, making it the best cat food for overweight cats.

    Its main ingredient is lean chicken, a natural delicacy among cats. It also includes whole-grain carbohydrates, chelated minerals, probiotics, fresh fruits, and vegetables. Not only does this diet help your cat lose weight, but it does so in a healthy way.

    This cat food diet also helps with hairball reduction. It contains natural fiber ingredients such as psyllium seed husks and cellulose to control hairballs.

    What’s more, the cat weight loss food has LifeSource Bits, an exclusive product from Blue that supports the immune system.

    Pros
    • No by-product meals, wheat, corn, soy, or artificial flavors
    • The food helps with weight loss as well as hairball reduction
    • Fiber and protein promote healthy digestion
    Cons
    • It can cause an allergic reaction to some cats

    6. Halo Holistic Wild Salmon & Whitefish Recipe – Best Weight-Control Cat Food

    Halo Holistic Wild Salmon & Whitefish Recipe

    Quality: 4.5/5
    Proteins: 32%
    Fats: 13%
    Calories: 400 Kcal/cup
    Fiber: 5%

    If you want your feline to stay happy and healthy as it loses weight, try Halo Holistic Wild Salmon & Whitefish Recipe – it’s the best weight-control cat food in the market today.

    Halo foods contain whole meat, which in this case is whole salmon and whitefish. Why whole meat, you might ask? Well, it is much easier for your cat to digest it compared to rendered meat meal.

    Additionally, cat food does not include preservatives, artificial colors, or preservatives. Instead, it has non-GMO vegetables. This helps your cat absorb the nutrients efficiently.

    Besides, the food is low in fats and calories. But it does include taurine, which boosts your cat’s metabolism, maintains healthy muscle function and weight.

    Cats love this recipe food as it is super crunchy.

    Pros
    • Whole ingredients
    • Free of hormones, preservatives, artificial colors, and flavors
    • Great with cats with stomach sensitivity problems
    Cons
    • It is not cheap

    7. AvoDerm Indoor Weight Control Recipe – Best Wet Cat Food for Weight Loss

    AvoDerm Indoor Weight Control Recipe

     

    Quality: 4.⅖
    Proteins: 10%
    Fats: 5%
    Calories: 154 kcal/can
    Fiber: 2%

    AvoDerm Indoor Weight Control Recipe is the best wet cat food for weight loss and is ideal for indoor and less active cats. It is packed with omega-rich avocados and high-quality proteins for balanced nutrition.

    The product includes chicken broth, liver, and tuna, to sustain your feline with animal-sourced protein. The broth also helps with hydration and your cat’s overall health.

    This tasty canned cat food is rich in vitamins, antioxidants, amino acids, and fiber-rich ingredients.  With each bite, your cat consumes a low-calorie formula. This, in turn, helps the feline achieve their ideal weight.

    Apart from cat weight loss, the food will also help your cat get a healthier coat and a better immune system.

    Pros
    • Includes fiber-rich grains and lean protein to control weight
    • Helps control weight for indoor and less active cats
    • Omega-rich avocados promote a healthy and beautiful coat
    • Contains antioxidant nutrients for a healthier immune system
    Cons
    • Product is inconsistent in terms of the looks, smell, and texture of the cat food
    • Low fiber content

    8. Solid Gold Fit as a Fiddle Weight Control Cat Food

    Solid Gold Fit as a Fiddle Weight Control Cat Food

    Quality: 4.⅗
    Proteins: 31%
    Fats: 9%
    Calories: 360 kcal/cup
    Fiber: 9%

    Solid Gold Fit Weight Control Cat Food is another best weight loss cat food. This grain-free product excludes wheat, corn, and soy fillers. Nevertheless, it has 20 superfoods for weight control and loss, a better immune system, and improved coat health.

    It is packed with high-quality ingredients like chickpeas, turkey, Alaskan pollock, and chicken low in fat and calories but high in fiber and protein.

    The 31% protein and 9% fiber reduce your cat’s body weight while keeping them satiated and energized. With this diet, you need to worry about your feline crying for more food.

    This recipe is both nutritious and delicious, even to picky cats.

    Pros
    • Gluten-free
    • Grain-free
    • Helps with gut health, immune system, coat, and overall immune system
    Cons
    • Some cats vomit after consuming it

    9. Instinct Raw Boost Healthy Weight Recipe

    Instinct Raw Boost Healthy Weight Recipe

    Quality: 4.⅕
    Proteins: 37.5%
    Fats: 12%
    Calories: 385 kcal/cup
    Fiber: 5.5%

    If your cat loves raw cat food, then the Instinct Raw Boost Healthy weight recipe is the way to go. Its two main ingredients are fresh chicken and chicken meal. It also features supplemental protein from menhaden fish meal and salmon to make the 37.5% protein content.

    The healthy weight recipe also includes fewer calories, L-carnitine, and fiber. These help your cat burn fat, supports healthy metabolism, and keeps your cat energized and full.

    You will love that this weight loss cat food is free of grains, corn, soy, wheat, and gluten.

    Pros
    • No artificial colors, chelated minerals, and preservatives
    • Low-fat content promotes healthy weight loss in cats
    • Added fiber helps the cat feel full and energized
    • Main ingredient is freeze-dried chicken
    Cons
    • Pricey

    10. Natural Balance Fat Cats Food

    Natural Balance Fat Cats Food

    Quality: 4.0/5
    Proteins: 35%
    Fats: 9.5%
    Calories: 320 kcal/cup
    Fiber: 9%

    Natural Balance Fat cat food works great with overweight adult cats. This low-calorie diet has 35% of protein to help your cat slim down while retaining muscle mass.

    The cat food contains high-quality, tasty proteins such as chicken meal, salmon, and peas. It is also packed with fiber-rich ingredients to help with satiation. Just a tiny portion and your kitty will feel full.

    This product is a balanced diet as it includes vitamins, omegas, minerals, and taurine to support a healthy heart and eyes. It is also free of artificial colors and flavors.

    Pros
    • Low-calorie kibble
    • High-quality proteins support active muscles
    • Designed for overweight cats
    Cons
    • Contains grain

    hepper cat paw divider

    Factors to Keep in Mind When Choosing the Best Cat Food for Weight Loss

    Before you purchase any weight loss food for cats, here are five factors to take into consideration.

    fat cat lying on the floor
    Image Credit: islandworks, Pixabay

    Real Meat

    Cats are carnivores. For cats to stay healthy and strong, their bodies need proteins. Therefore, always look for a diet with real meat, not rendered meat, as the main ingredient.

    Your overweight felines need more proteins when losing weight. This helps with muscle development and energy levels.

    Balanced Nutrition

    Cats are similar to humans. They, too, need a balanced diet. For this reason, when choosing a cat weight-loss food, go for one with a protein-rich diet (minimum 30%) but low in fat (about 10% – 12).

    Also, check that it has vital vitamins, minerals, and carbohydrates.

    Beneficial Supplements

    Supplements, too, aid in weight loss in cats and should be part of the ingredients list. One such supplement is L-carnitine.

    It is a water-soluble amino acid that has been proven to help with weight loss. You should also look for Omega-3 fatty acids as they aid in generating heat and energy.

    High Dietary Fiber Content

    Felines need to consume fiber, particularly when losing weight. Fiber boosts the cat’s digestion while keeping them satiable on few calories. Therefore, check that the cat food has high fiber content.

    Dangerous Ingredients

    Overweight cats are more susceptible to health risks. This is why you need to ensure that the weight loss cat food does not contain dangerous ingredients. These include artificial colors, preservatives, wheat, corn, and carrageenan.

    fat cat outdoors
    Image Credit: Andreas Almstedt, Pixabay

    Factors That Contribute to Cat Obesity

    If you are wondering how your beloved cat got to the point where they are overweight, here are five contributing factors.

    Unsuitable Diet

    Your cat’s diet likely included too much fat, which resulted in weight gain. But here is the good news. You can reverse this by introducing and maintaining a diet that encourages weight loss.

    Breed

    Did you know that some cat breeds are genetically predisposed to obesity? Breeds like Persian, Sphinx, and Ragamuffin have a higher genetic risk of obesity.

    Sterilization

    Sterilization, too, can cause obesity in your cat. If your kitty is used to ad libitum feeding, they cannot control their food intake. In addition, they have fewer energy requirements, hence the overweight size.

    Inactivity

    When a cat consumes energy-giving foods but does not utilize them, this too can lead to obesity. The energy intake becomes higher than its usage, causing an imbalance. Therefore, introduce your feline to weight control diet food if they are inactive.

    Treats

    Do you love spoiling your cuddly kitty with treats? These can also result in your cat’s overweight size. Treats have high-calorie content.

    When a cat consumes too many of these, its diet will have fewer vitamins, minerals, and nutrients. With time, your cat will pack a few extra pounds.

    Do not hate yourself for your cat’s overweight size. Instead, work to reduce the added weight gain.

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    Conclusion

    As a cat owner, you must love your pet. However, obesity is dangerous to cats and can lead to complicated health issues. For this reason, find protein-rich, low-calorie, low-fat dietary food for weight loss.

    This review offers you the 10 best cat food for weight loss. Among these, Nulo Grain-Free Dry Cat Food is our best overall pick. It is rich in proteins, low in carbs, and grain-free.

    Hill Science Diet took the spot as our best value weight loss cat food. Its ingredients are easy-to-digest, and weight reduction results are visible from 10 weeks!


    Featured Image Credit: Eveline de Bruin, Pixabay