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Hill's Science Diet Science Diet
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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+
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Senior Dog

Grain Free


By Health Condition

Mature Adult Large Breed - Dry

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Hill's® Science Diet®
Mature Adult Large Breed

Hill's® Science Diet® Mature Adult Large Breed dog food provides precisely balanced, easy-to-digest nutrition tailored to promote youthful energy in large breed dogs.

  • Natural sources of glucosamine & chondroitin for healthy joints & cartilage
  • Synergistic combination of key nutrients to restore youthful vitality
  • Enriched with omega-6 fatty acids and vitamin E to improve skin & coat*
  • High quality chicken protein with natural ingredients and no chicken by-product meal

*vs. previously fed grocery foods

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Key Benefits

Recommended For:

Large breed dogs weighing 55 -- 110 lbs (6+ years of age) and giant breed dogs weighing 110+ lbs (5+ years of age).

Not Recommended For:

Puppies, small and medium breed dogs. Pregnant or nursing dogs.

BenefitNutrientHow It Works
Youthful vitality & ideal weightL-carnitineA synergistic combination of key nutrients including L-carnitine promotes youthful vitality and helps maintain ideal weight.
Healthy skin & coatOmega-6 fatty acids & vitamin EExclusive blend of omega-6 fatty acids, vitamin E and other nutrients nourish the skin and promotes a noticeably shiny coat in 30 days.*
Healthy cartilage & jointsGlucosamine & chondroitinNatural sources of glucosamine and chondroitin are the building blocks for healthy cartilage and joints.

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 dry 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 Mature Adult 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.

Feeding transition

Mature Adult

Weight of DogAmount per Day
50 lb (23 kg)2 1/3 cups (230 g) - 3 1/4 cups (320 g)
60 lb (27 kg)2 2/3 cups (265 g) - 3 3/4 cups (370 g)
80 lb (36 kg)3 1/3 cups (330 g) - 4 2/3 cups (460 g)
100 lb (45 kg)4 cups (395 g) - 5 1/2 cups (545 g)
120 lb (54 kg)4 1/2 cups (445 g) - 6 1/4 cups (620 g)
140 lb (64 kg)5 cups (495 g) - 7 cups (695 g)
160 lb (73 kg)5 2/3 cups (560 g) - 7 3/4 cups (765 g)
Science Diet® Mature 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 Content

Dry 3681 kcal/kg (365 kcal per cup)

Dry Matter1
Carbohydrate (NFE)58.6
Crude Fiber1.7
Carnitine330 ppm
Vitamin C330 mg/kg
Vitamin E823 IU/kg
Chondroitin Sulfate1311 mg/kg (ppm)
Glucosamine339 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 Mature Adult Large Breed contains 3.5 oz. by weight.


Chicken Meal, Whole Grain Wheat, Whole Grain Sorghum, Brewers Rice, Brown Rice, Whole Grain Corn, Pork Fat, Chicken Liver Flavor, Soybean Oil, Corn Gluten Meal, Cracked Pearled Barley, Dried Beet Pulp, Lactic Acid, Potassium Chloride, Pork Liver Flavor, Flaxseed, L-Lysine, Choline Chloride, 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), Iodized Salt, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Taurine, Oat Fiber, Mixed Tocopherols for freshness, L-carnitine, Phosphoric Acid, Beta-Carotene, Natural Flavor, Dried Apples, Dried Broccoli, Dried Carrots, Dried Cranberries, Dried Peas.

Mature Adult Large Breed sd canine senior large breed 052742204406,052742454801

Hill's® Science Diet® Mature Adult Large Breed 4.8 5 56 56
Great food My two labs love it. They are 12 & 14 years old and have lots of energy and are happy and healthy. November 24, 2013
Science Diet is loved by hy household I have 6 senior rescued dogs (4 are Great Danes) and 3 rescued cats. Your product is the only product I could find that all my pets will eat with NO side effects. They all enjoy the taste, their coat is soft and shiny, no ear irritations, and best of all... no runny stool. I love Science Diet and so do my pets. October 28, 2013
What comes out is as important as what goes in... I have taken to rescue dogs... and they have taken to me. I have 4. The fact is, taking care of a dog - any dog/dogs - is more than feeding and sheltering and exercising them. It's also the cleanup of what they leave behind... and what goes INTO them can effect how their coats shed, and their other, uh, needs... nutrition, of course, but also the plumbing. <grin> This food has my guys running smoothly, predictably, and comfortably. It allows us to really love and spend quality time together all day, every day. And I tried NUMEROUS other foods before we could say that! September 26, 2013
Endorsed by my 12 yr old puppy! We have multiple dogs, all rescues. One of them came to us in early 2003. He was a 100lb 3 year old shelter dog, frightened and ravenous. The first few weeks he managed to barrel his way past us out the front door and ran, but luckily we got him back unharmed. These days, 9 years later, we open the door and he stays put. We think it's because he knows where the food lives. He's now 12+ years old and a svelte 74lbs. He runs around the yard with the other dogs like a puppy, and he can jump high enough to see over the 7' block fence. He's healthy, has a shiny coat, and he's a very happy boy. I attribute that to quality food and lots of love. What more could you ask for? May 16, 2012
My 12 year old Rottweiller was not eating on a regular daily schedule. We were concern so we tried Science Diet. My 12 year old Rottweiller was not eating on a regular daily basis. We were concerned so we tried Science Diet - now she chows down every day. We think it has given her new life. She was getting thin and weak, now she's walking the block every day and she looks healthier. We hope she makes it to ripe old age of 15 on Science Diet. Pretty long life for a Rotty! Great dog food! September 8, 2014
My dog loves it I like the size of kibble my 16 yr old dog doesn't choke on it. August 23, 2014
Love food Hi, my lab is 10 years old, and love the food, but I don´t know why she is still hungry, I just change the food. August 22, 2014
we have only fed our dogs with Science Diet! We appreciate the excellent quality! As we see other dog food companies have recalls for problems with the quality of their food, we have never seen this with Science Diet. We had our first dog for 15 years and she only ate dry Science Diet. Now, we have two dogs for 10+ years and, again, they have only consumed Science Diet. Please keep up the wonderful quality control! And, don't change the formula--if it ain't broke, don't fix it! July 16, 2014