Hill's Science Diet Adult Perfect Weight Dry Cat Food

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15-lb bag
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Hill's Science Diet Adult Perfect Weight Dry Cat Food provides breakthrough nutrition formulated to help your cat achieve a healthy weight and improve quality of life.

Key Benefits

  • A proprietary ingredient blend to support your pet’s healthy weight loss with real chicken as #1 ingredient to maintain lean muscle
  • Cats at a healthy weight are less prone to develop weight-related issues, and live happier, healthy lives
  • Clinically proven antioxidant blend with vitamins C and vitamins E to help support a healthy immune system
  • Natural, high quality, easy-to-digest ingredients with no artificial colors, flavors or preservatives for a flavorful, nutritious meal
  • Highly digestible, high quality protein to help maintain lean muscle

See all items by Hill's Science Diet

  • Item Number
  • Brand
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Weight Control

Nutritional Info


  1. Chicken, Brewers Rice, Corn Gluten Meal, Wheat Gluten, Powdered Cellulose, Chicken Meal, Tomato Pomace, Dried Beet Pulp, Flaxseed, Chicken Fat, Chicken Liver Flavor, Coconut Oil, Lactic Acid, Calcium Sulfate, L-Lysine, Potassium Chloride, Choline Chloride, Dried Carrots, Dl-Methionine, Taurine, Vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (Source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Riboflavin Supplement, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin D3 Supplement), Minerals (Manganese Sulfate, Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Calcium Iodate, Sodium Selenite), Iodized Salt, Dicalcium Phosphate, L-Carnitine, Oat Fiber, Mixed Tocopherols for Freshness, Beta-Carotene, Natural Flavors, Apples, Broccoli, Cranberries, Green Peas.

Caloric Content

  1. 300 kcal/cup
Guaranteed Analysis
Crude Protein 36.0% min
Crude Fat 10.5% min
Crude Fiber 10.0% max
Vitamin C 85 mg/kg min
Vitamin E 500 IU/kg min

Feeding Instructions

Adjust feeding amounts as necessary to maintain optimal weight. If you are unsure, ask your veterinarian. New to this food? Mix increasing amounts of your pets new food with decreasing amounts of the old food over a 7-day period. Keep fresh water available at all times! Your pets nutritional needs may change as they age. Ask your vet at every checkup. Science Diet is available in a wide variety of dry and canned foods for your pets unique needs.

Transition Instructions

A gradual transition to a new pet food is important to avoid digestive upset. To transition, mix your pet’s current food with the new food. Over 7 days, gradually decrease the amount of the current pet food while increasing the amount of new pet food.

Pet Lovers Also Bought

Precisely Balanced Nutrition for Weight Control

Hill's Science Diet Perfect Weight cat food provides breakthrough nutrition to help cats achieve a healthy weight and improve their quality of life. These yummy recipes are specially formulated for adult cats who require fewer calories, including less active cats, neutered cats or cats who are otherwise prone to excess weight gain.

Precisely Balanced Nutrition for Weight Control
Vets' #1 Choice

Vets' #1 Choice to Feed Their Own Pets

More than anyone, veterinarians know a healthy cat food when they see one. That's why they give Hill's Science Diet to their own cats more than any other brand. Hill's works with pet nutritionists to develop recipes with the best cat food standards in mind. These recipes are designed to keep your feline family member healthy and strong so she can enjoy more moments of purring and playing.

The Science Behind Happy

With over 220 veterinarians, Ph.D. nutritionists and food scientists working every day around the world, Hill's is able to create new products and improve existing ones that help your pet live a long, healthy and full life. They pride themselves on wholesome ingredients, precise nutrition and high-quality standards in pet food because they know firsthand that when your cat is healthier, she's happier too.

The Science Behind Happy
Natural Recipes Made in the USA

Natural Recipes Made in the USA

Hill's is proudly made in the USA with only high-quality protein. Real chicken, lamb or salmon is the first ingredient, along with other natural ingredients sourced from North America, Europe and New Zealand-all free of artificial colors, flavors and preservatives.

Fresh, Whole Food Ingredients

Hill's uses high-quality ingredients to provide the proper balance of essential nutrients for optimal health. Guided by evidence-based research, Hill's formulas are precisely balanced to meet each pet's specific life-stage, size or special needs.



High-quality protein source that is easy to digest, helps maintain lean muscles and helps support the immune system to combat allergies.



Rich in Omega-3 fatty acids that improve the shine of the pet's coat and high in fiber that helps move food through the digestive system.



Good source of antioxidants, vitamin A, vitamin C and dietary fiber, which helps with joint problems and promotes overall gastrointestinal health.



Great source of fiber and vitamin C and boosts the immune system, supports skin and heart health and helps the body release toxins.



Excellent source of B vitamins and vitamin C and contains the most carotene of any vegetable as well as high levels of antioxidants that provide protection against free radicals.



Excellent source of vitamin C and unique natural source of tannins (astringents found in plants) that help prevent harmful bacteria from thriving in the urinary tract.

About Hill's Pet Nutrition

For more than 70 years, Hill's Pet Nutrition has helped enrich and lengthen the special relationship between people and their pets by putting their passion for balanced pet nutrition into everything they do. With a dedicated team of veterinarians and pet nutritionists involved in the development of all their products, Hill's is able to ensure high-quality pet food to help all pets live a happy and healthy life.

Shop Hill's Pet Nutrition

About Hill's Pet Nutrition

Customer Reviews

90 reviews 90 Reviews 4.8 out of 5 Stars
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99% Recommend

99% of reviewersrecommend this product

4.8 / 5
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  • Love CHEWY

    By on

    Chewy is so easy, and the prices are very comparable. No getting the product into the shopping cart, on to the conveyor, back into the cart, into the car, out of the car, into the garage and up the steps!!!! The Fed X guy does all the work, plus if you do have a question the Chewy representatives are very pleasant and so easy to talk with. I highly recommend, thank you Chewy.

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  • Great for hefty cats.

    By on

    My 2 cats run around 15-16 lbs each. Vet has me using this kibble as a main meal. Supplemented with canned wet food about 2-3 times a week. Cats love this kibble. Highly recommended.

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  • Science Diet Cat food

    By on

    My 9 cats love the perfect weight. They chew through the bag to get it. It helps to reduce their weight. Wonderful product reasonably priced. Price higher other places.

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  • Kitty Kelly-Jo and I both love this product !

    By on

    This particular Hill's Science Diet product ( Adult Perfect Weight Dry Cat Food) has served our 18 year-old kitty quite well. She is healthy, perky, and still has her girlie figure ! Thanks, Chewy, for providing such top-quality products ! Nancy, from the Sacramento Delta Region, Calif.

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  • My cat loves it.

    By on

    I tried this product because my cat was starting to gain weight after having lost so much with the diagnosis of diabetes. That was controlled and I found a wet cat food that she would eat and she put on 3 pounds rapidly. I researched through Chewy and saw this product. Her weight is steady now and she really loves the taste. I like it because the larger bits make her chew the food instead of just swallowing it whole. All in all, both me and my cat recommend this product.

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    By on

    I am so glad that I found out about this site and took the leap to use it. I love this product for my cats and so happy that I can now have it delivered to my door instead of going to the store.

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  • Fed to outside feral cats

    By on

    After the first bag, my cats haven't touched it so I feed the outside strays this expensive food.

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  • Big crunch

    By on

    My cat likes it but it's a big size crunch and my cat has lost her teeth making it difficult to eat. She loose some weight after a week, her fur is shiny.

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  • Cats like this food

    By on

    It's nice food for all the cats that I have and not one of them is lacking for weight.

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  • Even my not so fat cats love this food

    By on

    After my vet scolded me over the weight gain of my female cat, I switched to the Perfect Weight food. She likes it a lot (she likes most food :-( ) but even my not so fat boys seem to love it!

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