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Hill's Science Diet Science Diet
Hill's Ideal Balance Ideal Balance
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Hill's Healthy Advantage

Kitten Kitten
Adult 1+ Adult 1+
<br>Adult 7+

Adult 7+
Adult 11+ Adult 11+

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Adult 1+ Adult 1+
<br>Adult 7+

Adult 7+
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Adult 11+

Grain Free
Crafted-Small Batch


By Health Condition

Adult 11+ Age Defying - Dry

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Hill's® Science Diet®
Adult 11+ Age Defying

Hill's® Science Diet® Adult 11+ Age Defying cat food provides precisely balanced, easy-to-digest nutrition for older cats.

  • Defends the body and brain against aging
  • Clinically proven antioxidant benefits
  • No artificial colors, flavors, or preservatives

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Key Benefits

Recommended For:

Adult cats 11+ years of age.

Not Recommended For:

Kittens, pregnant or nursing cats.

BenefitNutrientHow it Works
Kidney and joint healthKey nutrientsOptimal levels of key nutrients to support eye, heart, kidney and joint health
Agile, alert, interactive catMultivitamin blendExclusive multivitamin blend to help keep older cats agile, more alert and interactive
Healthy immune systemVitamins C + EClinically proven antioxidant blend with vitamins C + E to help support a healthy immune system
DigestibilityNatural High Quality IngredientsNatural, high quality, easy-to-digest ingredients with no artificial colors, flavors or preservatives for a flavorful, nutritious meal

Additional Info

Great tasting natural nutrition for a long, happy life. With soft purrs and even softer nuzzles, you and your cat have a thing all your own. Because every moment you spend together is special, we strive to give you more of them. With natural ingredients and the right nutrients, Hill's Science Diet is precisely prepared to offer your cat the nutrition she needs for lifelong health and happiness.

We make every bag of our dry cat food in our own US facilities with highest quality natural ingredients from North America and Europe. These ingredients must meet our strict requirements for purity and nutrient content, which exceed industry standards.

You can make a difference in the lives of shelter pets. With every purchase of Science Diet you help feed over 100,000 homeless pets every day, 365 days a year.
Learn more at

Other Products to Consider

Science Diet® is available in a wide variety of foods for your cat's unique needs. Canned cat food is available from Science Diet® in several flavors that your cat will love.

Feeding Guide

Daily Feeding Guide:


  • 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 pet's new food with decreasing amounts of the old food over a 7-day period.
  • Keep fresh water available at all times!
  • Your pet's 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 pet's unique needs.
  • To prevent suffocation, keep the packaging out of the reach of pets and children.

Feeding transition


Weight of CatAmount per Day
4 lb (1,8 kg) 1/3 cup (40 g)
5 lb (2,3 kg) 3/8 cup (45 g)
8 lb (3,6 kg) 5/8 cup (80 g)
10 lb (4,5 kg) 2/3 cup (85 g)
12 lb (5,4 kg) 3/4 cup (95 g)
14 lb (6,4 kg) 7/8 cup (110 g)
16 lb (7,3 kg)1 cup (125 g)
Science Diet® Adult 11+ Age Defying Cat Food is formulated to meet the nutritional levels established by the AAFCO Cat Food Nutrient Profiles for maintenance of adult cats.

Average Nutrient and Caloric Content

Dry 4089 kcal/kg (510 kcal/cup)

Dry Matter1
Carbohydrate (NFE)37.8
Crude Fiber1.7
Carnitine560 ppm
Vitamin C109 mg/kg
Vitamin E741 IU/kg
Omega-6 Fatty Acids Total4.21


1The nutrient in the product after moisture is removed. It is used to make direct comparisons of nutrient profiles of products with differing moisture contents.
An eight fluid oz. measuring cup of Adult 11+ Age Defying contains 4.4 oz. by weight.


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

Adult 11+ Age Defying - Dry sd feline senior 052742146218,052742146317,052742146201,052742146300,052742146409 1462,1463,1464

Rated 4.8 out of 5 by 96 reviewers.
Rated 5 out of 5 by Hill's Science Diet Senior 11+ Age Defying food really helps older cats Our older cat, Rufus, who just turned 12 was looking rough and was just laying around like he did not feel well. We started him on the Hill's Science Diet Senior 11+ Age Defying dry food and within 6 weeks, his coat was fuller and smooth and he had more energy. I highly recommend anyone with older cats try this formula. June 10, 2012
Rated 5 out of 5 by My 18 year old Kitty... My Lil Black Kitty was having some intestional issue and hadn't been eating her hard food. After examining her teeth and gums and tongue I saw nothing that would inhibit her consumtion of hard food. I had thought she was getting spoiled by her wet food in her old age and limited that..she noticable became thinner and her fur had lost its upon some research I choose Hill Science Dry food and bought a bag from the local pet store. She ate it up immedietly and kept it down wich was the best thing I could of hoped for. She now enjoys this hard food as her staple as well as the wet food wich might I add there is not a very good selection for old kitties @ the pet store chains nor are there ANY TREATS available. Her fur is full and glossy now she has gained some muscle back and Mommy is no longer worried Thank You Thank you!! May 16, 2012
Rated 5 out of 5 by Turns my senior cat into a kitten again My 15 year old cat had been healthy throughout her life. She started acting differently-not herself. She began vomiting a lot & had trouble with using the litter box. I took her to the vet & her blood work came back that her kidneys were slowing down but with the proper nutrition she could have many years ahead of her with a great quality of life. No prescription food though because she could be fine if she had a healthy lifestyle. I asked the man at the local pet store if there was any special sort of food he could recommend. He said he had luck with the Science Diet Age Defying for Senior cats. He reminded me that it came with a guarantee and also that it was developed by veterinarians & who would know more about feeding your pet healthy. I bought a bag and within less than a week the turn around in my cat was fantastic. She got her "kitten face" back again & began to play like she did when she was younger. (We do have 2 younger cats that help to keep her at a good weight by exercising her a lot) Next trip to the pet store I thanked the man & told him how good my cat was doing. Ever since then she has been her old self. No litter box issues or vomiting at all-except an occasional hairball-she is a Maine Coon. May 22, 2013
Rated 5 out of 5 by TOP OF THE LINE PRODUCT I purchased a bag of Science Diet because my cats seemed to be in a slump from eating other popular brands of dry cat food. One of my cats even vomits some of those brands. I previously purchased Science Diet dry a few years ago, and although the price for a large bag is a higher than some other brands, it's well worth it. Quality has always been better than quantity, but, Science Diet does give enough for a month out of the largest bag. I will also try other products in the near future to see if my cats will enjoy it. Hairball and Indoor is on my to do list. Thanks! May 16, 2012
Rated 5 out of 5 by Super for older cats Both of my cats are 17 years old and in great health for their age. For at least the past 6 years they have been on Science Diet Hairball Light formula. I switched to the Senior formula 6 months ago because of their age and was worried about the hairballs (one of my cats is very susceptible to them). The age defying formula seems to be fine with hairball control but also made a huge improvement in their coats, no more knots. Since they hit about 16 yrs old knots in the fur has been a problem. This product isn't cheap, but nothing good is. May 16, 2012
Rated 5 out of 5 by Great Product!!!! My cat Lady was nine when she got attacked by a dog and lost her back leg. After her second surgery the vet recommended Science diet senior. She is about to celebrate her fourteenth birthday and she loves her Science diet senior. She is in great health and her coat is so beautiful and I owe it all to Science diet senior. April 16, 2014
Rated 5 out of 5 by What a difference! Started feeding Meeka, our 11 year old indoor cat, Hill's Senior Diet Age-Defying formula and within two weeks began to notice an increase in her energy level, more interest in playing and interacting with us and less time spent sleeping. It's as though she has a new lease on life! Love it and will continue to feed it to her. Thanks, Hills Diet, for extending my cat's quality of life. April 20, 2012
Rated 5 out of 5 by Age Defying helps my cat stay young! My 13 year old cat, Friday loves Science Diet Senior Age Defying cat food. It helps her to stay active and healthy. My friends all can't believe shes 13 years old! She looks and plays like a much younger cat! I won't feed her anything else! April 27, 2014
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