Hill's Science Diet Adult Large Breed Dry Dog Food

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35-lb bag
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  • 35-lb bag
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Give your four-legged friend the nutrition he needs for lifelong health and happiness with Hill's Science Diet Adult Large Breed Dry Dog Food. Featuring real chicken as the very first ingredient, it’s scientifically formulated to provide complete and balanced nutrition that’s tailored to deliver a visible difference in large breed dogs. Natural sources of glucosamine and chondroitin provide the building blocks of healthy cartilage and joints for ideal mobility, while the added vitamins, minerals and nutrients deliver clinically-proven antioxidant benefits.

Key Benefits

  • Real chicken is the very first ingredient in this highly-digestible, flavorful recipe that’s scientifically formulated to provide complete and balanced nutrition.
  • Natural sources of glucosamine and chondroitin support the development of healthy cartilage and joints.
  • Clinically proven antioxidant blend including vitamins C and E supports strong immunity and overall good health.
  • Omega-6 fatty acids and other added nutrients nourish the skin and promote a noticeably shiny coat.
  • Made in Hill’s U.S. facilities using high-quality ingredients and no artificial colors, flavors or preservatives.

See all items by Hill's Science Diet

  • Item Number
  • Brand
  • Breed Size
    Large Breeds, Giant Breeds
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States

Nutritional Info


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.

Caloric Content

363 kcal/cup

Guaranteed Analysis
Crude Protein 21.0% min
Crude Fat 12.5% min
Crude Fiber 3.0% max
Moisture 10.0% max
Vitamin C 85 mg/kg min
Vitamin E 400 IU/kg min
Glucosamine 300 mg/kg min
Chondroitin SulFate 550 mg/kg min

Feeding Instructions

Weight Daily Feeding (cup)
50 lbs 3 1/4
60 lbs 3 2/3
80 lbs 4 1/2
90 lbs 5
100 lbs 5 1/3
110 lbs 5 3/4
120 lbs 6 1/4
130 lbs 6 1/2
140 lbs 7
160 lbs 7 2/3

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, wet 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

194 reviews 194 Reviews 4.8 out of 5 Stars

98% Recommend

98% of reviewersrecommend this product

4.8 / 5

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  • Our Doodle is Thriving!

    By on

    We adopted our Goldendoodle, Seamus, in March of this year. At 3 1/2 yrs old and a life spent in a commercial breeding facility (aka puppy mill) he was a mess. After being on the Science Diet Large Breed for 9 mo's he is a different dog! Not only are we getting compliments on his coat, but he is now a solid 63lbs of muscle, and solid #2's finally as well. He has so much energy and focus when we train and literally runs circles around the other dogs at the dog park! I've switched all of my fur babies over to various Science Diet formulas and all are thriving.

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  • Even the picky one likes it!

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    I've been searching for a food that is good for my dogs and one they will actually eat. I joined the Chewy community about 2 months ago and love the options offered and how affordable they are. I stumbled onto Hills science diet and decided to give it a try. I loved the options of food offered and the flavor ranges. I highly recommend this brand for anyone out there looking for a healthy alternative for their dogs or for those dog parents trying to please a picky eater!

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  • My dog loves this food!

    By on

    Chewy offers super fast service and I don’t have to lug those huge bags of dogfood to the car and then into the house. The price is very reasonable, too! Andy LOVES Hill’s Science Diet Adult Large Breed Dog Food. He has always eaten high-end (expensive) food, but a lot of times needed some enticement to eat it. He devours this food without any additives. I’ll never switch foods again!

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  • Five stars

    By on

    My 2 year old Great Dane loves this food! He gets so excited when I go fill up his bowl! I’m going to switch my cockapoo to Hill Science too. I think it is helping with his skin allergy and he doesn’t smell like nachos anymore! Thank you to Chewy for making it so easy to have this big bag of food delivered to my front door on a regular basis!

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  • My dogs love it, also vet recommended brand

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    About 3 years ago when I first got my doggy the vet told me that I need to feed him science diet dog food. About a year ago I got another doggy and they have both been eating science diet and never had digestive problems or any other health problems. They love the flavor, I love that they're healthy.

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  • Dogs are enjoying dinner.

    By on

    My two retrievers recently stopped eating an expensive well known brand they have been on for years. We switched then to Science Diet and they are eating again with no ill effects-as you may know switching food brands is dicy at best.

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  • Science Diet

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    Science Diet was recommended by our Vet. I should have just bought one small bag but NO I bought two large bags. Our Black Lab hated it. We slowly introduced Science diet. He would leave the Science Diet and eat his old food. He will not touch the Science diet. After a few weeks of this we decided to go with something different. I still have one large unopened bag!

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  • Great nutrition for all dogs

    By on

    I have a Great Dane, a golden retriever, and a pug/boston terrier mix. They are all on different formulas of Science Diet. My Great Dane has a sensitive stomach and this works very well for him. My pug/boston terrior has never been to the vet other than regular shots and checkups. And my golden retriever is 13 years old and still acts like a puppy. In the past, I have tried several different brands of dog food to see what kind of difference they would make in my dogs health. I have always went back to Science Diet. My vet says he feeds his dogs this brand, and I am done waisting money on other brands of dog food. My dogs are happy, and so am I!

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  • Loved the service!

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    I have two Great Pyrenees and they go through plenty of food every month! They have been on Science Diet since they were puppies and I refuse to feed them anything else. I used to buy their food from our vet and invariably when I needed it, they didn't have any in stock. The vet had a buy 9 and get one free program but, with Chewy's auto ship not only do I get them exactly when I need them every month but I'm saving money! Thanks a bunch!

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  • Large breed dry dog food

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    My dog really likes it He is an 82 lb.half std poodle and half giant schnauzer. He usually eats all of his meal in a hurry.

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