Hill's Science Diet Adult Small & Toy Breed Dry Dog Food

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15.5-lb bag
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Hill's Science Diet Adult Small & Toy Breed dog food provides precisely balanced, easy-to-digest nutrition tailored for small and toy breeds.

Key Benefits

  • Calcium and high quality proteins support bone and muscle strength in smaller dogs
  • 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 and high quality fiber, fatty acids and antioxidants to support healthy digestion, skin and coat and a strong immune system
  • Recommended for adult dogs 1-6 years of age that weigh up to 25 pounds when full grown

See all items by Hill's Science Diet

  • Item Number
  • Brand
  • Breed Size
    Small, Extra Small
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States

Nutritional Info


Chicken Meal, Whole Grain Wheat, Brewers Rice, Whole Grain Sorghum, Soybean Meal, Cracked Pearled Barley, Pork Fat, Chicken Liver Flavor, Soybean Oil, Flaxseed, Lactic Acid, Pork Liver Flavor, Dried Carrots, Dried Spinach, Dried Grape Pomace, Dried Tomato Pomace, Dried Citrus Pulp, Iodized Salt, Oat Fiber, Choline Chloride, Vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (Source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Riboflavin Supplement, Folic Acid, Vitamin D3 Supplement), Minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Taurine, Potassium Chloride, Mixed Tocopherols for Freshness, Phosphoric Acid, Beta-Carotene, Natural Flavors.

Caloric Content

364 kcal/cup

Guaranteed Analysis
Crude Protein 21.5% min
Crude Fat 12.5% min
Crude Fiber 4.0% max
Calcium 0.65% min
Vitamin C 90 mg/kg min
Vitamin E 700 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 foods, canned foods and treats 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 Dogs

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

Precisely Balanced Nutrition for Adult Dogs
Vets' #1 Choice

Vets' #1 Choice to Feed Their Own Pets

More than anyone, veterinarians know a healthy dog food when they see one. That's why they give Hill's Science Diet to their own dogs more than any other brand. Hill's works with pet nutritionists to develop recipes with the best dog food standards in mind. These recipes are designed to keep your furry family member healthy and strong so he can enjoy more moments of overwhelming happiness.

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.



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



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.



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.



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.

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

82 reviews 82 Reviews 4.9 out of 5 Stars
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100% Recommend

100% of reviewersrecommend this product

4.9 / 5
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  • Wonderful change

    By on

    I recently changed from Science diet puppy to Science diet for adult 1-4 small breed dogs! My Yorkshire Terrier absolutely lovvvves it! Much better than the puppy diet. It's awesome

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  • Must be good

    By on

    I have a 1 year old Chihuahua that I started on this food after puppy food. I'm giving it 5 stars because my last Chihuahua died in 2015 at the age of 14 and she was on this food pretty much her whole life. Must be pretty good if it kept my girl going until 14. Prior to giving her this, she wouldn't touch any kibble so she apparently liked the taste, too.

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  • Good product, quick delivery

    By on

    To be able to get this product for less than what I can buy it in the store is great. As someone who is severely restricted because of serious lung issues, having it delivered is wonderful. Good job, Chewy!

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  • Perfect size

    By on

    Our dogs love this small size bits of nuggets. I'm so pleased Science Diet came out with dry food for my little ones. I feel they are getting all the benefits of dry food along with a balanced diet.

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  • Super Product

    By on

    Our little dog was having trouble chewing other dog food. He really likes this food.... even the cat likes it!

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  • Good service

    By on

    This company had great customer service and my dog food arrived two days earlier than I thought. Thanks again

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  • Great food

    By on

    We have been feeding this brand of food for a very long time and am convinced it is the very best. They are very healthy at 13 years and 15 years, and 4 years. I also feed two cats sensitive stomach formula. Great food

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  • Dog eating better

    By on

    Could not get our dog to eat her food, but after changing to Hills Science Diet for her size and age she eats very well and without hesitation!

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  • Dry Dog Food

    By on

    My dog loves the Hill's Science Diet dry dog food. And I love the convenience of shopping online and getting the same value as I would at the pet store with quick delivery. Love this place!

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  • Amazing!

    By on

    I have used this dog food now for several years. When we had big dogs, we used Hills Science Diet. Then , three years ago we brought home our first rescue dog. She is a mix Dashound and Toy Poodle. She only weighed a little over 7 pounds and was very skinny. She was a year old. She has been on this food now and is doing very well...11 pounds and the vet says it is a perfect weight for her. So, I will continue to give her this very good food!!

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