Hill's Science Diet Adult Advanced Fitness Chicken & Barley Recipe Dry Dog Food

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  • 5-lb bag
  • 17.5-lb bag
  • 38.5-lb bag
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  • Item Number
  • Weight
    38.5 pounds
  • Made in
    United States
  • Brand
  • Food Form
    Dry Food
  • Lifestage

Hill's Science Diet Adult Advanced Fitness Original dog food provides precisely balanced nutrition for a visible difference. 

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 muscles
  • Promotes ideal body weight
  • 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, Cracked Pearled Barley, Whole Grain Sorghum, Whole Grain Corn, Corn Gluten Meal, Chicken Meal, Pork Fat, Chicken Liver Flavor, Dried Beet Pulp, Soybean Oil, Lactic Acid, Flaxseed, Potassium Chloride, Iodized Salt, Calcium Carbonate, Choline Chloride, Vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (Source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Riboflavin Supplement, Biotin, Folic Acid, Vitamin D3 Supplement), Minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Oat Fiber, Taurine, Mixed Tocopherols for Freshness, Natural Flavors, Beta-Carotene, Apples, Broccoli, Carrots, Cranberries, Green Peas.

Customer Reviews

Rated 4.8 out of 5 by 255 reviewers.
Rated 5 out of 5 by I have strong healthy young adult dogs! This is the first time using a subscription service for my pets. I have use Hill's Science Diet for years for all of my animals and enjoy the healthy results for all age levels of my animals. September 13, 2016
Rated 5 out of 5 by My dog loves this food. Science Hill is a great product that has really helped my dogs digestive system. We had him on a cheaper food and it just didn't agree with him. He's much happier on Science Hill. September 4, 2016
Rated 5 out of 5 by Great Company This is a fantastic company and I hope it will be around for a long time August 29, 2016
Rated 5 out of 5 by Great product - great customer service Very reasonable pricing great delivery, pricing great, easier than shopping!! August 22, 2016
Rated 5 out of 5 by Great Great thanks Chewy greaaaaaaaaaaat Suuuuuuuuupppppeeeerr August 16, 2016
Rated 5 out of 5 by great for labs with skin sensativity We have a 4 year old Chocolate lab. We started her on Science Diet right from the time we got her because of the recomendation from a family member. We didnt think much about what kind of food to get or how it affected her until we switched out of convenience to another popular brand because it was sold in a store we frequented. We quickly saw the difference! Her beautiful shiny and smooth coat turned ashy and began to fall out. She never had a shedding problem before. Then we noticed that her skin was red and she seemed to lick certain spots all day till they were raw. We found out that Labs can be prone to skin sensativity and realized that the food was not good for her. We switched right back to Science diet and her skin went back to normal and her beautiful chocolate coat that everyone loves was back. We have recomended it to 2 other people we know who have labs and they have the same result. Thanks science diet for a quality lab friendly dog food for a great price. [This review was collected as part of a promotion.] July 1, 2013
Rated 5 out of 5 by Only the Best My dog's will not eat anything other than Hill's Science Diet...their coats are shiny, eyes are bright and full of energy! July 18, 2016
Rated 5 out of 5 by Good all around food This is the only food that my 11 year old rescue 60 pound dog has ever eaten. He stays fit and active even after ACL surgery 4 years ago. July 10, 2016
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