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
  • 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 225 reviewers.
Rated 5 out of 5 by Great adult dog food I switched my energetic Boston Terrier from her puppy food to this recently. It was an easy transition and keeps her well fed in-between walks and long days at doggie daycare. I highly recommend Hills Science Diet for lifelong feeding- I also use the canned food to make frozen kongs that she loves. September 23, 2016
Rated 5 out of 5 by perfect diet for my dog This food is very nutritious and gives my dog lots of energy for her days full of play September 18, 2016
Rated 5 out of 5 by she's eaten science diet for 8 years now. darcy I have fed my dog Science Diet since I brought her home from the breeders. She is now eight years old and has thrived on it. September 24, 2016
Rated 5 out of 5 by Great Small Bite Food My dog ate Science Diet at the Shelter. They had her on Large Breed Puppy food when we adopted her, but she seemed to have a hard time eating it. I bought this food, since it was determined that she was no longer a puppy - this bag comes in 38.5 lbs which is a very large bag for a small dog. I placed the food in a sealed plastic container to avoid spoilage. My dog no longer has any issues eating. Great product! September 15, 2016
Rated 5 out of 5 by Our dogs love this product Both of my beagles really like this food and have never tired of it. Hills Science Diet products are recommended by every vet that we have encountered so I don't think rhat you can go wrong with this brand. Enjoy it doggies! September 14, 2016
Rated 5 out of 5 by Love the ease of shopping on line for this great product. Love the larger size. I have 2 Chi mixes and these are the perfect size. September 10, 2016
Rated 5 out of 5 by Great product I have 3 Chihuahuas. One 13 years and two twin 16 month old puppies. Been using Hills for a long time. Here's my gripe, the 17 1/2 # bag is hard to open and does not have a zip closer like the adult age defying 15 # has. Why is that? Either this was an old bag, which I doubt, or just poor design by Hills. They need to know. For some reason I can't rotate the picture. September 9, 2016
Rated 5 out of 5 by Too Easy! Ordering large bags of dog food and having them delivered to my door couldn't be any easier (Love the FedEx man even more for the delivery). No more lugging the bags into a cart, then into the car, out of the car and into the house. How could it get any easier? As for savings...I can't say enough. Low prices and no gas used to and from the store. August 29, 2016
  • 2016-10-01 T06:41:52.897-05:00
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