Hill's Science Diet Adult Indoor Cat Dry Cat Food

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

Key Benefits

  • Natural fiber comfortably reduces hairballs
  • Healthy fiber supports digestive health and high quality ingredients make litter box clean-up easy
  • 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
  • High quality protein helps maintain a healthy weight and 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

Nutritional Info


  1. 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.

Caloric Content

  1. 328 kcal/cup
Guaranteed Analysis
Crude Protein 29.5% min
Crude Fat 16.0% min
Crude Fiber 6.5% min
Crude Fiber 9.5% max
Taurine 0.1% min
Vitamin C 85 mg/kg min
Vitamin E 500 IU/kg min
Omega 6 Fatty Acids 2.5% 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.

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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.

Precisely Balanced Nutrition for Adult Cats
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.



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 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

104 reviews 104 Reviews 4.7 out of 5 Stars
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94% Recommend

94% of reviewersrecommend this product

4.7 / 5
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  • Cats love it!

    By on

    This cat food is a great healthy food for indoor cats, love this brand and love that they send coupons in the bag! My cats are pretty picky cats which is why I was worried about this brand but they love it and are always wanting more, I used to be able to fill their bowls and know they'd snack through out the day, but now I have to limit them because they will eat it all in one sitting!

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  • Picky cats like it

    By on

    My older kitty has gotten a little hefty on the sensitive stomach food that I purchased to help one of my other cats. It is a little bit too calorie rich for an older neutered cat. I tried another lower calorie Science Diet and he didn't seem to like it much but they all like this one. The Persians seem to have an easier time eating it as well with the different shape. A winner.

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  • 2 Indoor Boys Love It!

    By on

    My two indoor cats (2 years and 12 years) both love it! To be honest, they are not picky eaters to begin with, but I always seem to have success with Hill's Science Diet.

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  • Really big kibble!

    By on

    I ordered the Science Diet Indoor dry cat food to transition my cats off of the Science Diet kitten food. My kitten is now a young cat and is getting chubby eating the kitten food. In fact, all my adult cats love it. Unfortunately, the cats and their human servant were disappointed in this kibble. The pieces are huge, almost dog food size, and the kitties prefer a small kibble. They are eating it without enthusiasm. I am gradually switching to another brand with a smaller kibble size, Purina Pro Plan.

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  • Good For My Cats, Good For Me

    By on

    Both my little girls are indoors except for a romp on the screened in veranda. They are active one year olds both "rescue" members of my family. We don't "own" each other, just belong together as family. They seemed to enjoy this food from the first moment and continue to do so. As they are indoor animals their weight requires monitoring. This food makes it easier.

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  • Maverick's Only Choice

    By on

    I've fed Maverick Science Diet since I got him as a kitten. He's kind of a big boy and I have never had an issue when using this formula. He was on UD for a short period of time but we were able to transition off that. A few months ago, I tried to feed him Taste of the Wild (which I feed the dogs and they love!). My cat when on a HUNGER STRIKE! Mav would ask for food with a full bowl, I thought he was just being troublesome and needed more time. Not true! The day I brought his science diet food back home, Maverick ate immediately! And he was so happy to have his favorite back! This product is great, Mav loves it and I love knowing he is eating a quality product!

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  • Hill's Science Diet Adult Indoor Cat Dry Cat Food

    By on

    My Cats Love Hill's Science Diet - It is an excellent product. Chewy priced it reasonably and delivered it - makes life easier.

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  • Happy Cat Bowels

    By on

    Both cats have a lot of bowel issues - tried grain free diet, added fiber, etc. Switched to this food and they are both happy, regular and we don't have as many messes or as much stink around the house. The cats love them too. We use them instead of treats and the cats will do anything for them.

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  • My Cats Won't Eat It

    By on

    I can only speak for my silly & picky furbabies. They don't like the hardness of this brand of food. They will do without before they eat this. It is hard for sure. Hurts like crazy if you step on it bare footed and doesn't break if you have shoes on. I even tried putting it in their treat bowl and they still wouldn't touch it. Fuess we will have to donate it to the pound.

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  • Healthy Benefits

    By on

    I love the healthy Benefits of Hills.... I have to say the one thing I dislike about this product is the fact that the pieces are large & hard. I understand the crunchy benefits but my Tess is not liking the size of the Indoor variety. Wish we had the option of product size... small/medium/large based on the size/breed of your cat. Just like medication. just Say'n:)

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