Hill's Science Diet Adult Advanced Fitness Small Bites Dry Dog Food

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In stock
  • 5-lb bag
  • 17.5-lb bag
  • 38.5-lb bag
- Quantity +


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

Hill's Science Diet Adult Advanced Fitness Small Bites dog food provides precisely balanced nutrition for a visible difference in dogs who prefer a smaller kibble. 

Key Benefits

  • Recommended for adult dogs 1-6 years of age
  • Real chicken is the #1 ingredient
  • Omega 6 fatty acids for healthy skin and shiny coat
  • High-quality proteins help maintain strong, lean muscle
  • Easy to digest for optimal nutrient absorption
  • 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 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.

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 dog is healthier, he'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.


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 fiber and minerals and a good natural source of beta-carotene, an antioxidant essential for neutralizing 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

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, Brewers Rice, Whole Grain Sorghum, Corn Gluten Meal, Whole Grain Corn, Chicken Meal, Chicken Liver Flavor, Pork Fat, Dried Beet Pulp, Soybean Oil, Lactic Acid, Flaxseed, Potassium Chloride, Iodized Salt, Choline Chloride, Calcium Carbonate, 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, 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 4.8 out of 5 by 233 reviewers.
Rated 5 out of 5 by Amazing choice i made switching to Chewy! This is a great place to buy your pet food. At store X and store Y I was paying much more money. Why not get it here?? One doesn't have to lug the dog food home. Hauling 30 to 50 lbs. of dog food into the house is a chore I am glad to eliminate! The impulse buys, (such as dog toys my Aussie chews into bits) are not purchased unless I have time to think about it. Online I do have time! I love the service. Three cheers for Chewy & it's founders. October 12, 2016
Rated 5 out of 5 by Great Product I have been using this product for over a year now. I was buying it locally but after checking on line I found it much cheaper pound for pound and delivered to my door rather than driving to pick it up! Chewy also carries it in a larger size bag so I restock less often! Very satisfied! October 8, 2016
Rated 5 out of 5 by Great deal My dog loves this food also gives em a shiny coat on your dog October 17, 2016
Rated 5 out of 5 by We have been feeding this to golden retrievers for years and all have reached their teenage years. We started to feed this to a golden named Max who just missed his 17th birthday. Since then we have rescued 3 goldens and the first 2 reached their teen years and the third is only 6. All of these dogs have had long and healthy lives and Hills Science has always been the central part of their diets. October 8, 2016
Rated 4 out of 5 by Itchy dogs I've used this product for over a year. I ordered it threw chewy and 2 of my 4 dogs have been itching like crazy. Not sure if it's related but I've heard the same product may come with slightly different ingredients from place to place October 7, 2016
Rated 5 out of 5 by Great Price. Great price and fast delivery. All my 5 dogs love the Science Diet and look forward to their next meal. A very healthy and vet recommended dog food. October 11, 2016
Rated 5 out of 5 by Great price/fast shipping My dogs have been on this food for 7 years now and do really well on it. Great ingredients. Chewy provides it at a great price and super fast shipping. September 30, 2016
Rated 5 out of 5 by Why didn't I do this before? First time ordering online. It was so simple, order arrived on time with exactly what I ordered. No going to the store, standing in line, and lugging it home. Love it! October 1, 2016
  • 2016-10-23 T05:38:39.173-05:00
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