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

Kitten Kitten
Adult 1+ Adult 1+
Mature <br/>Adult 7+
Adult 7+
Senior 11+ Senior 11+

Puppy Puppy
Adult 1+ Adult 1+
Mature <br/>Adult 7+
Adult 7+
Senior Dog
Senior Dog

Grain Free
Crafted-Small Batch


By Health Condition

Adult Optimal Care® Original - Dry

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Hill's® Science Diet®
Adult Optimal Care® Original

Hill's® Science Diet® Adult
Optimal Care® Original cat food provides Precisely balanced, easy-to-digest nutrition for a visible difference guaranteed or your money back.

  • Taurine and controlled levels of phosphorus promote healthy vital organs
  • High quality lean protein helps promote a healthy weight
  • Omega-6 fatty acids and vitamin E to improve skin & coat in 30 days*
  • Real chicken #1 with natural ingredients and no chicken by-product meal

*Vs. previously fed grocery foods

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Key Benefits

Recommended For:

Adult cats 1 -- 6 years of age.

Not Recommended For:

Kittens, pregnant or nursing cats.
During pregnancy or nursing, cats should be switched to Science Diet® Kitten Healthy Development Original or Science Diet® Kitten.

BenefitsNutrientHow It Works
Healthy vital organsTaurineTaurine, essential amino acids and multivitamins promote healthy growth of vital organs including the heart and kidneys.
Healthy body weightHigh quality proteinHigh quality lean protein helps promote a healthy weight.
Healthy skin & shiny coatOmega-6 fatty acidsExclusive blend of omega-6 fatty acids, vitamin E and other nutrients nourishes the skin and promotes a noticeably shiny coat in 30 days guaranteed.*

Additional Info

Healthy choices matter, for both you and your pet. For more than 70 years, Hill's has been advancing knowledge of how to keep pets their healthiest. That means great-tasting, nutritious food with natural ingredients that helps your cat live a long, happy life.

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.

By choosing Science Diet, you help us provide food to shelter pets 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 such as delicious Adult Savory Chicken Entrée that your cat will love. Also try Science Diet treats that are sure to please!

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 foods, wet foods and treats for your pet's unique needs.
  • To prevent suffocation, keep this bag out of the reach of pets and children.

Feeding transition

Adult maintenance

Weight of CatAmount per Day
5 lb (2,3 kg) 1/4 cup (30 g) - 3/8 cup (45 g)
10 lb (4,5 kg) 3/8 cup (45 g) - 5/8 cup (80 g)
15 lb (6,8 kg) 5/8 cup (80 g) - 7/8 cup (110 g)
Science Diet® Adult Optimal Care® Original 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 4044 kcal/kg (504 kcal/cup)

Dry Matter1
Carbohydrate (NFE)35.0
Crude Fiber1.7
Vitamin C109 mg/kg
Vitamin E729 IU/kg


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 Optimal Care® Original contains 4.4 oz. by weight.


Chicken, Whole Grain Wheat, Corn Gluten Meal, Pork Fat, Chicken Meal, Dried Beet Pulp, Brown Rice, Chicken Liver Flavor, Calcium Sulfate, Lactic Acid, Potassium Chloride, Fish Oil, Soybean Oil, Iodized Salt, Choline Chloride, 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), Oat Fiber, Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene, Dried Apples, Dried Broccoli, Dried Carrots, Dried Cranberries, Dried Peas.

Adult Optimal Care® Original - Dry sd feline adult 052742204505,052742679709,052742851907 6797,2045,8519

Rated 4.8 out of 5 by 177 reviewers.
Rated 5 out of 5 by Great product for continued health. We have 2 cats that were ferrel, both had health issues when they appeared on our porch. We fed them Optimal Care from the time they chose us for care givers and there are no health issues now. Both are healthy and happy little members of our family. May 16, 2012
Rated 5 out of 5 by 5 Healthy Cats We have raised 5 cats on Science diet. None have ever gotten sick. We have our Vet to thank for his recommendation 30 years ago. Our cats get only the Best, Science Diet. May 16, 2012
Rated 5 out of 5 by amazed at the change I have tried numerous foods for my cats and it was a long journey to find a brand that would help my cats. My older cat Ivan is 6 years old and has an extreme sensitive stomach. He would be ok for a while but always threw up after a month or so. Then I switched to Hills Science diet. Not only did it help his stomach but his coat is gorgeous now. I have a kitten Daenerys who just turned one who has been on Science diet since we adopted her from the local shelter. She is beautiful as well. Healthy pets is all I ask for and they are now that they are on Hills brand foods. So thank you from the bottom of my heart. We are amazed every day viscosity and beautiful they are. September 3, 2015
Rated 4 out of 5 by optimal care dry cat food I've been buying the original dry cat food for over 10 years. It was recommended to me by my vet for weight control then when my cat lost her weight, I also told to which her to the original formula. She ate it for the next 6 years until she pass at the age of 18 (human years). Now, I've got a new cat, he's also on it. August 15, 2015
Rated 5 out of 5 by All My cats Love It! I have 13 rescue cats and a few have Gastrointestinal issues and also Heart problems. I dont believe in feeding your pet low quality cat food if you want them healthy. I used to feed cheaper brands of dry cat food and even hough my cats liked it they were having hairball and gastric issues. I decided to switch to the Hills Science Optimal Care dry food and as soon as I got home and opened the bag ALL 13 of my kitties loved it. I have been feeding Hills since about 1 month ago and since then no hairball issues and minimal gastric issues. Although more expensive I truly believe Hills has made my cats healthier and event their coats look shinier and full. Thanks Hills Science Diet. April 17, 2015
Rated 5 out of 5 by Science Diet Optimal Care for Cats When you take your fur baby to the Doc and here she has "pres-teen teeth" or "Her fur is so shiny and soft" or "Her skin is very good" you know your feeding her the right food. And then when your baby eats is all up, that just confirms your thoughts. I wouldn't change her food for anything. May 15, 2015
Rated 5 out of 5 by Hill's Science Diet food for all We have 4 cats and they all enjoy this cat food. We started buying this brand about 8 months ago because Chuck our #3 additional could not eat any other brand without developing problems. Our newest addition Bootsy is 6 months old and prepares the wet food. January 15, 2015
Rated 5 out of 5 by Optimum health w/ Optimal Care food! My cat officially turns 7 next week and has eaten Science Diet since day 1! It has always kept her coat beautiful, her size perfect, her attitude playful and active! She's never had 1 hairball, stomach or weight issue and I contribute that to the good quality of the Science Diet! I give her a few pieces of the oral care (she thinks they're treats) every other day to help keep her mouth healthy, and have started mixing in the new Ideal Balance with her regular food. She's loving it! Almost too active for me-I was expecting her to be a little lazier at 7! MissyCat and I are very thankful we found this brand so early on! May 17, 2012
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