Hill's Science Diet Adult Large Breed Chicken & Barley Recipe Dry Dog Food

By Hill's Science Diet
Rated 4.5901 out of 5 stars
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Hill's Science Diet Adult Large Breed Dry Dog Food, 15-lb bag slide 1 of 10
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$38.99Chewy Price
$42.99Chewy Price
$37.04Autoship Price
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About This Item

  • 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.
Play Video: Learn More About Hill's Science Diet From Our Team of Experts
Learn More About Hill's Science Diet From Our Team of Experts

About Hill's Science Diet Large Breed

About Hill's Science Diet Large Breed

Hill's Science Diet Large Breed Dog Food will give your big dog the nutrition he needs for lifelong health and happiness. This food is made for large breed adult dogs who weigh more than 55 pounds fully grown and puppies who will grow up to weight more than 55 pounds. Scientifically formulated with natural sources of glucosamine and chondroitin, it helps provide the building blocks for healthy cartilage and joints for better mobility. Hill's Science Diet Large Breed Dog Food has added vitamins, minerals and nutrients for antioxidant benefits for your big best friend. Manufactured in the United States, every ingredient meets strict requirements for purity and nutrient content which exceed industry standards.

Product Benefits

#1 Veterinarian Recommended

Vets are experts in your dog's health — and more of them recommend the biology-based nutrition of Hill's Science Diet than any other brand



*Dry foods only


Ingredient Benefits


The healthiest pet food won't do much if pets refuse to eat it. From a rich aroma to various textures, every Hill's recipe is taste-tested by the pets at the Pet Nutrition Center to make sure mealtime is irresistible. Using natural ingredients and cutting-edge science, Hill's understands what it takes to feed your pet's best life. *Dry foods only


*Dry foods only



Quality Ingredients and the Highest Standards

Hill's conducts annual quality systems audits for all manufacturing facilities to ensure they meet the high standards your pet deserves. Hill's also conducts daily safety checks on every pet food product to help ensure the safety of your pet's food.

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 the health and happiness of animals into everything they do. They even partner with shelters to provide Hill's food to more than 9 million shelter pets.
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Top IngredientsChicken, Cracked Pearled Barley, Whole Grain Wheat...Chicken, Cracked Pearled Barley, Whole Grain Wheat...Chicken Meal, Cracked Pearled Barley, Brewers Rice...Chicken Meal, Cracked Pearled Barley, Pea Fiber...Chicken, Cracked Pearled Barley, Whole Grain Wheat...
Special DietNatural, With GrainNatural, With GrainWith GrainWeight Control, With GrainNatural, With Grain
Health FeatureDigestive Health, Vitamins & MineralsDigestive Health, Vitamins & MineralsDigestive Health, Vitamins & MineralsImmune Support, Vitamins & Minerals, Brain Health, Weight ManagementDigestive Health, Vitamins & Minerals
Breed SizeLarge Breeds, Giant BreedsSmall Breeds, Medium Breeds, Large Breeds, All BreedsLarge Breeds, Giant BreedsLarge Breeds, Giant BreedsExtra Small & Toy Breeds, Small Breeds
Food FlavorChicken, PoultryChicken, PoultryChicken, PoultryChicken, PoultryChicken, Poultry

Questions & Answers

27 Customer Questions

What size is the large nugget for adult food? The nuggets I’m currently feeding are a bit larger than a pencil eraser.
Answer by Mk21Nov 28, 2021
They are 16 x 8mm according to the pictures

Does science diet use GMO ingredients?
Answer by ChewySep 02, 2018
The manufacturer cannot guarantee that all ingredient are GMO free.

I have a Labrador retriever who is 10 months old. should I continue with the puppy large breed food or switch him to adult large breed. thanks
Answer by ChewyJul 03, 2019
This recipe is recommended for adult dogs. Puppies mature into adults at a different time. A large dog breed will mature into an adult at about 12 - 15 months.

How many calories in the hills science diet large breed dog food
Answer by ChewyJul 10, 2020
This diet has a caloric content of 363 kcal per 8-oz cup.

ReviewsWrite a Review

Rated 4.5901 out of 5 stars
649 Reviews
Would recommend to a friend

649 Customer Reviews

Rated 1 out of 5 stars
By Becca on Aug 1, 2022

Changed the recipe

My dogs used to enjoy eating this and now it sits in their bowls all day. I have a dog that eats using a slow feeder because she inhales her food, but will not eat this anymore. Either my dogs are tired of it, or the company has changed the recipe. Either way, I have 3/4 remaining of a 40 pound bag that my dogs won’t eat. Very disappointed.

Rated 5 out of 5 stars
By Chloe on Jun 17, 2022

I'm bigger than I look!

My name is Chloe and I am a Teddy Bear who will be 13 on the 13th of September. I have always been on the Science Diet and even though I'm little, I prefer the LARGE BREED kibble. As I got older, (after five) we wondered about the more dainty pieces and I ate it, but I wasn't happy, so one bag later, my Mom got the big pieces again and the rest is history! I like to play with the big dogs, too, or any size, for that matter, but I guess in my mind I'm a Big Dog Now. I'm glad she signed up with Chewy, too, so I won't ever run out and have to munch on tidbits! The people who helped Mom are super nice, too, so I can say I really like this new "restaurant in the mail!" What's not to like, right?

Rated 1 out of 5 stars
By sick on Jul 16, 2022

something wrong

My dog has been eating Hill's for awhile now with no problems at all, but recently I purchased a bag of your dog food and I have been breaking it down to that when I add this dog food my dog throws up all the food. When I leave Hill's out then my dog is fine.

Rated 5 out of 5 stars
By Ozzy on Jul 29, 2022

Ozzy’s feast

My Ozzy loves this food. Since we switched from a more expensive another name brand to this, there’s nothing left in his bowl and he looks forward to each meal!

Rated 5 out of 5 stars
By Tristan on Jun 19, 2022

Great food!

We've tried lots of different brands of dog food but have been using Hill's for the last year and plan to continue. It has great nutritional content and our dog is healthy, regular, and has lots of energy and, most importantly, he loves it!

Rated 5 out of 5 stars
By Logan on Apr 13, 2022

Riley Loves it so far.

I want my friend to have a long healthy life, I frequently check for problems or recalls, of the brand I was using, it had a few so i decided time to change, HSD doesnt stay in Rileys (a Gordon Setter) bowl for very long! 3 servings a day and she really loves it.. Time will tell about long term, she is 4 yrs old. It has only been 2 weeks, so she does have HSD in her system, Still full of pep firm stools she had no issues changing over Now if the price was a bit lower. Either way she has a new food

Rated 5 out of 5 stars
By LizaTailor2022 on May 9, 2022

What a Wonderful Convenience!

We were looking for a more economical way of feeding our two big dogs, who thrive on this food, and eat 70 pounds every three weeks. We found what we were looking for with Chewy, and find it very convenient to have the food delivered right to our door rather than having to drive across town for it and carry it from the vehicle into the house.

Rated 3 out of 5 stars
By Dogs on Aug 5, 2022

Food for hungry dogs

The food is great, I have used it for many many years with good results.

Rated 5 out of 5 stars
By BooBoo on Jun 27, 2022

Science Diet

Science Diet keeps our pets so healthy! Chewy has the best prices and delivery time is amazing!

Rated 5 out of 5 stars
By NaninCA on Mar 18, 2022

Great service!

I was changing from puppy to adult dog food & customer service was great & informative. Autoship is a great convenience and usually it arrives before the estimated date. Thank you for making our life and our beautiful golden retriever's life so much easier.