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Hill's Science Diet Science Diet
Hill's Ideal Balance Ideal Balance
Hill's Prescription Diet Prescription Diet
Hill's Healthy Advantage

Kitten Kitten
Adult 1+ Adult 1+
Mature <br/>Adult 7+
Adult 7+
Senior 11+ Senior 11+

Puppy Puppy
Adult 1+ Adult 1+
Mature <br/>Adult 7+
Adult 7+
Senior 11+
Senior 11+

Grain Free


By Health Conditon

Adult Large Breed - Dry

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Hill's® Science Diet®
Adult Large Breed

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Hill's® Science Diet® Adult Large Breed dog food provides precisely balanced nutrition tailored for a visible difference in large breed dogs.

  • Natural sources of glucosamine & chondroitin for joints & mobility
  • High quality protein maintain strong, healthy muscles
  • Nutrition to improve skin and coat in 30 days*
  • Real chicken #1 with natural ingredients and no chicken by-product meal

*vs. previously fed grocery foods

Where To Buy

Key Benefits

Recommended For:

Large breed adult dogs 1 -- 5 years of age with an ideal weight of 55 -- 110 lbs and giant breeds 1 -- 4 years of age with an ideal weight of 110+.

Not Recommended For:

Puppies, pregnant or nursing dogs. During pregnancy or nursing, dogs should be switched to: Science Diet® Puppy Healthy Development Original or Science Diet® Puppy Healthy Development Small Bites

BenefitNutrientHow it Works
Healthy joints & cartilageGlucosamine & ChondroitinNatural sources of glucosamine and chondroitin are the building blocks for healthy joints and cartilage.
Strong, healthy musclesProteinHigh quality proteins help maintain strong, healthy muscles and ideal body condition.
Healthy skin and shiny coatOmega-6 fatty acids & Vitamin EExclusive blend of omega-6 fatty acids, vitamin E & other nutrients nourish the skin & promote a noticeably shiny coat in 30 days.*

Additional Info

Healthy choices matter, for both you and your pet. For more than 70 years, Hill's has been advancing knowledge of how to keep pets their healthiest. That means great-tasting, nutritious food with natural ingredients that helps your dog live a long, happy life.

We make every bag of our dog food in our own US facilities with highest quality natural ingredients from North America and Europe. These ingredients must meet our strict requirements for purity and nutrient content, which exceed industry standards.

By choosing Science Diet, you help us provide food to shelter pets 365 days a year.
Learn more at

Other Products to Consider

Science Diet is available in a wide variety of foods for your dog's unique needs. Canned dog food is available from Science Diet in several flavors such as delicious Gourmet Beef Entrée that your dog will love. Also try Science Diet treats that are sure to please!


*vs. previously fed grocery foods

Feeding Guide

Daily Feeding Guide:


  • 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 pet's new food with decreasing amounts of the old food over a 7-day period.
  • Keep fresh water available at all times!
  • Your pet's 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 pet's unique needs.
  • To prevent suffocation, keep this bag out of the reach of pets and children.

Adult maintenance

Weight of DogAmount per Day
50 lb (23 kg)2 2/3 cups (265 g) - 3 3/4 cups (370 g)
60 lb (27 kg)3 cups (295 g) - 4 1/4 cups (420 g)
80 lb (36 kg)3 3/4 cups (370 g) - 5 1/4 cups (520 g)
90 lb (41 kg)4 1/4 cups (420 g) - 5 3/4 cups (570 g)
100 lb (45 kg)4 1/2 cups (445 g) - 6 1/4 cups (620 g)
110 lb (50 kg)4 3/4 cups (470 g) - 6 3/4 cups (670 g)
120 lb (54 kg)5 1/4 cups (520 g) - 7 1/4 cups (720 g)
130 lb (59 kg)5 1/2 cups (545 g) - 7 2/3 cups (760 g)
140 lb (64 kg)5 3/4 cups (570 g) - 8 cups (790 g)
160 lb (73 kg)6 1/2 cups (645 g) - 9 cups (890 g)
Science Diet® Adult Large Breed Dog Food is formulated to meet the nutritional levels established by the AAFCO Dog Food Nutrient Profiles for maintenance of adult dogs.

Average Nutrient and Caloric Contents

Dry 3659 kcal/kg (363 kcal/cup)

Dry Matter1
Carbohydrate (NFE)52.7
Crude Fiber2.2
Carnitine13 ppm
Vitamin C304 mg/kg
Vitamin E729 IU/kg
Chondroitin Sulfate1012 mg/kg (ppm)
Glucosamine779 mg/kg (ppm)


1The nutrient in the product after moisture is removed. It is used to make direct comparisons of nutrient profiles of products with differing moisture contents.
†An eight fluid oz. measuring cup of Adult Large Breed contains 3.5 oz. by weight.


Chicken, Whole Grain Wheat, Cracked Pearled Barley, Whole Grain Sorghum, Whole Grain Corn, Corn Gluten Meal, Chicken Meal, Chicken Liver Flavor, Pork Fat, 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, Folic Acid, Biotin, 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, Dried Apples, Dried Broccoli, Dried Carrots, Dried Cranberries, Dried Peas

Adult Large Breed - Dry sd canine large breed adult 052742886206,052742940908 9409C

Rated 5 out of 5 by from Our Rottweiller loves it! We tried three different brands of high end gluten free puppy food because our Rottie would stop eating them after the first or second bag. Finally no knowing what to do and talking with our Vet we switched her to adult food. Again, she would not eat the other brands so not knowing what to do next we studied all the brands and finally settled on Science Diet Large breed Adult and she looks forward to her meals and cleans them up immediately. Never has she finished her meals at one feeding, nibbled through out the day. It is a pleasure seeing her enjoying eating and ease our concerns for her. Great dog food!
Date published: 2014-02-11
Rated 1 out of 5 by from Top rating until you changed the formula I used this exclusively for my American Yellow Lab until you changed the formula. He is allergic to 8 items and the previous formula was the only item approved for him as it contained none of them. He can't have the New formula. Ingredients in it such as brewers rice, brewers yeast, peas are three of them. I bought 5 bags of the old and don't know what I'm going to do when it is consumed. I have used the old formula for years on my dogs. Why did you change it? More fillers?
Date published: 2013-02-27
Rated 5 out of 5 by from a product you can trust I am disabled and my dog is my companion dog and want the best for her. there are so many pet foods that have jumped into the market in the last 5 years so it is very confusing. I think a lot of them just want your money and to please stockholders and don't really care about the pet. I chose science diet because it has been around for a long long time. it's made in the United States, the company is run by veterinarians, used most by veterinarians. my dog loves it, the kibble is the right size, it is very digestible because there is very small waste piles. and science diet is a great value and the company has very few recalls.
Date published: 2013-10-19
Rated 5 out of 5 by from Good Quality I have had my two dogs on Science Diet since they were puppies. Recently my husband decided to try to save money by buying cheaper dog food at the grocery store. Shortly after switching the food my dogs turned into little gas machines and had dry, flaky skin. I had to buy medicated shampoo that smelled bad and give them a bath once a week just to curtail the horrible dandruff. Not worth the few bucks we saved switching brands. We have since gone back to Science Diet and my dogs coats are soft and shiney and they don't drive everyone out of the room with their uncontrollable gas.
Date published: 2012-05-16
Rated 5 out of 5 by from This dog food has many great qualities! I have had three Great Danes now, and all of them have eaten the adult large breed or the lamb and rice adult large breed food. We switch between the two just for a variety in taste and my dogs love both! Heck the one eats 9 cups a day and is still growing; while the other eats 6 cups a day! I really value that our pet store gives a free bag after every ten, we go through the dog food, but I would never comprise my dogs health to save a buck! They are part of our family! Thanks Science Diet for always taking care of my family!
Date published: 2012-05-16
Rated 5 out of 5 by from I beleve Science Diet dog food adds years to a dog's life! Our labrador retiever is now five years old, and he is the third one we have owned. All of them have been fed Science Diet dog food, and all of them lived to almost 14 years old. A large dog (over 75 lbs) puts a lot of strain on his joints--it is imperative to feed him a good quality dog food that he enjoys eating, and that will help him maintain a healthy weight and joints. My granddog chocolate lab just turned 15, and he also has been fed Science Diet throughout his life. These animals are not just pets to us, they are an important part of our family, and Science Diet definitely helps them stay healthy and active!
Date published: 2012-05-16
Rated 5 out of 5 by from I'm a veterinarian and I recommend this product daily! I have been feeding all my pets (dogs & cats) Science Diet foods for past 14 years. Currently, I have 2 large breed dogs and they love the Science Diet Large Breed dry food. They never leave a nugget behind. Both of my dogs have beautiful shiny hair coats, good dental hygiene and are very healthy dogs. As a veterinarian, I speak with clients I use Science Diet as ideal food to feel any of their pets of all ages, but especially large breed puppies. I believe diets now are designed differently for Large Breed dogs compared to what they were when I was in vet school - nutrition for pets has come a long way and the Hill's company has contributed a huge amount to these changes with their research. Thanks Hill's for making such great diets for our pets!!
Date published: 2012-08-21
Rated 5 out of 5 by from Great protein, with small bites, for large dogs. I have had my German Shepherd, Jakobie, on Hill's Science diet since we got him at 7 weeks. He was on the puppy formula until he got to be a year old. He is now 2 1/2 years old and we feed him Hills Science for large breed, but small bites. He LOVES it. We tried him on one other type of food only once. He would not eat it!! We have 2 other dogs, one is on the "weight watchers" food & the other eats what ever comes in contact with his bowl. We love how their coats shine & they are very healthy. I believe that to be contributed to the Hills Science dog food.
Date published: 2013-11-14
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