Hill's Science Diet Adult Indoor Cat Dry Cat Food

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  • 3.5-lb bag
  • 7-lb bag
  • 15.5-lb bag


  • Item Number
  • Made in
    United States
  • Brand
  • Food Form
    Dry Food
  • Lifestage

Hill's Science Diet Adult Indoor cat food provides precisely balanced nutrition tailored for cats with an indoor lifestyle.

Key Benefits

  • Recommended for adult cats 1-6 years of age with an indoor lifestyle
  • Healthy, gentle digestion for easy litter box clean-up
  • Supports lean muscle and healthy body weight
  • Natural fiber blend helps avoid hairballs in 30 days
  • Real chicken #1 with natural ingredients and no chicken by-product meal
  • Made in the USA!

See all items by Hill's Science Diet

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Precisely Balanced Nutrition for Adult Cats

Hill's Science Diet adult cat food provides precisely balanced, easy-to-digest nutrition for a visible difference in adult cats. These yummy recipes are specially formulated for cats 1-6 years of age to help improve skin and coat health and support immunity.

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.

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.


Good source of Omega-3 fatty acids that helps calm itchy skin, promote a shiny, healthy coat and reduce shedding.


Excellent insoluble fiber source that supports healthy digestion, and the prebiotic fiber stimulates the growth of the favorable gut bacteria (probiotics).


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

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


Chicken, Whole Grain Wheat, Corn Gluten Meal, Pork Fat, Powdered Cellulose, Pea Bran Meal, Dried Egg Product, Wheat Gluten, Dried Beet Pulp, Chicken Liver Flavor, Lactic Acid, Soybean Oil, Calcium Sulfate, Potassium Chloride, Fish Oil, Choline Chloride, Iodized Salt, 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), L-Carnitine, Minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Oat Fiber, Mixed Tocopherols for Freshness, Phosphoric Acid, Beta-Carotene, Natural Flavors, Dried Apples, Dried Broccoli, Dried Carrots, Dried Cranberries, Dried Peas.

Customer Reviews

Rated 4.7 out of 5 by 242 reviewers.
Rated 5 out of 5 by Indoor Perfection Your Science Diet Indoor formula contains all 3 foods that I've had to mix for them in the past. UT Health, Hairball formula, and THE daily care food.... THEY LOVE IT!!!! Even the Outside Babies like it as a treat. NOW, I just need 1 bag of Senior Hairball & 2 Indoor every 6 weeks! All 12 Furbabies say its PURRRRFECT, and THEY recommend it highly July 16, 2016
Rated 1 out of 5 by Cats wouldnt touch it. I feed my cat the science diet original and i thought they would like this. Nope. They went hungry instead. Now i wasted my money on a big bag of this. July 15, 2016
Rated 5 out of 5 by My cats love this food. I decided to switch my cats to this brand after I recently rescued a kitten that ate the Science Diet for kittens so I decided to switch my 2 older cats to the adult kind and they absolutely love it! July 14, 2016
Rated 5 out of 5 by Love Chewy..js. Pretty simple....product and customer service is extraordinary ....love this company. July 3, 2016
Rated 5 out of 5 by Best dry food The cats love it, they are a healthy weight, and happy. They both eat the food thoughout the day, and never seem to have any problems. Vet recommended. I tried the blue buffalo, but I heard the extra protein was too much for most pets to handle. They also didn't like the taste. Will stick to Science Diet for a long time. June 22, 2016
Rated 5 out of 5 by both of my cats that are on it love it I would have to say both my cats like the food and don't have any trouble with the size or taste. June 29, 2016
Rated 5 out of 5 by Our cats love it. We have been using Hill's Science Diet cat food for years. We had an over weight cat which we were able to help bring to a healthy weight and maintain it with WD. So now that our 3 cats are all younger and healthy, we are using the Adult Indoor to help maintain good health. June 15, 2016
Rated 5 out of 5 by AMAZING The shelter that I got my cat from told me that they fed their pets Science Diet. I thought to myself, "No way! Too expensive for a shelter to afford!". When I got my cat, they gave me a little sample bag with enough food for like 2 weeks. To supplement, I thought getting wet food would be good. Little did I know that I needed to wean her off before jumping in with other brand food. She got sick and could not keep things down. I decided to keep using Science Diet (Kitten) and then Indoor when she grew up. Although it is a few dollars more per bag, a 7 lb (I think?) bag can last my cat about a month or two! It is amazing! I have had her almost a year and bought only 4 or 5 bags of food! To top it off, my cat is super smart! I compliment this food for giving her brains! Feeding your cat the right amount (I feed her 2/3 a cup a day, 1/3 in the morning and 1/3 at dinner time, about 12 hours apart) makes her very lean. Thanks Hill's!!!!! You have a lifelong pet food buyer! Do you have guinea pig food, lol? August 9, 2014
  • 2016-07-24 T12:56:28.551-05:00
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