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
  • Weight
    15.0 pounds
  • Brand
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Weight Control

Nutritional Info


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

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

110 reviews 110 Reviews 4.8 out of 5 Stars

99% Recommend

99% of reviewersrecommend this product

4.8 / 5
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  • Purrrrfect for my cat!

    By on

    I have a rescued 3yr old Orange Tabby that loves to eat...so I needed to get him a high quality, high protein food that will help him lose some weight. He eats everything in front of him so changing his food will be no problem. He's had a pretty rough life up to now, so I'll make sure he gets the right nutrition so he's a happy pet from now on!!

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  • Science Diet

    By on

    This was my first purchase with Chewy and I enjoyed the overall experience. I had a bit of a hiccup with your system and my bank (it was weird) but the lady I talked to was extremely nice and helpful, and we figured it out. I'll definitely be ordering from Chewy again!

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  • Perfect Weight

    By on

    My cats love Perfect Weight dry food. My boy, Rocky, was once at 20 pounds at his heaviest. He is not supposed to have dry food, but sometimes I cave and I give him some kibble. With the help of this food, I was able to get Rocky's weight down to 15 pounds within a few years. My vet was amazed. I have never purchased the 15lb bag of food before, simply because it was too expensive at my local pet superstore. I found this price on Chewy to be reasonable, plus I had a coupon and free shipping. I could not pass up on the offer.

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  • Actually works

    By on

    My cat has lost a 1/2 a pound already from being on switched to this food. It really does work but you have to stick to the feeding instructions on the bag. Don't free feed otherwise it defeats the whole purpose.

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  • Yes! Yes! YES!

    By on

    Honestly, at first I was a little reluctant to order because it seems too good to be true. This was a new food for my cats and only one store in my state carries the food in store. And that store is two hours away. My cats LOVE this new food. And I placed my ordered around 11:30pm on a Wednesday and received my order by 3:00pm on that Friday.

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  • Works for my cat!

    By on

    My picky eater, not very active, indoor cat had gained too much weight on kitten food, so I switched to this a couple of months ago. He likes it and he has lost a little weight. He's a year old now, and I will keep him on it.

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  • My 4 Cats Love it

    By on

    I haven't seen any weight loss yet, but that's probably because they are constantly after me for a snack and I give it to them. It seems easily digestible with no problems for the one cat that sometimes has problems.

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  • Best Dry Food

    By on

    My cat is a picky eater and this is the only dry food he eats. I got it to help him lose weight he put on while in a shelter prior to me brining him home but now he won't eat any other brand. My vet said it's alright to continue this so long as I follow their instructions.

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  • Sit at the Bowl

    By on

    Our two kids get fed twice a day with wet food and once in the evening with a dry serving. Well since trying this brand and type they both are sitting at the dish when it is time for the serving.

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  • Good product, Quick shipment

    By on

    We have been using Chewy for cat foods that are not available locally plus one that is an Rx. Shipment is quick and our cats love the food.

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