Hill's Science Diet Adult Large Breed Chicken & Barley Dry Dog Food, 35-lb bag

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About This Item

Details

  • High-quality protein supports your furbaby’s lean muscles.
  • Natural sources of glucosamine and chondroitin promote healthy joints.
  • Omega-6 fatty acids and vitamin E support your best friend’s skin and coat health.
  • Natural fibers support your pup’s digestion.
  • This recipe is crafted with natural ingredients.

Ingredient Information

Feeding Instructions

Learn More About Hill's Science Diet From Our Team of Experts

Science Diet Adult Dog Nutrition

Hill’s Science Diet adult dog foods contain essential nutrients for dogs during the prime of their life. With natural fibers for healthy digestion, they also include omega-6s and vitamin E for beautiful skin and coat.

ActivBiome+ Multi-Benefit Upgrade

Only Science Diet foods feature ActivBiome+ Multi-Benefit—a special blend of immune system-supporting antioxidants and gut-healthy prebiotic fibers. Hill’s is always working to keep pets healthier for as long as possible.

Quality Ingredients. Tasty Flavors.

Science Diet adult dog foods offer nutrients to keep them healthy and flavors to keep them happy. Whether your dog prefers crunchy kibble or savory stews, these foods have the textures and flavors that deliver.

Recommended by Veterinarians

Hill’s is a leader in cutting-edge food science and research, trusted and recommended widely by vets everywhere.

About Hill’s Science Diet

In 1948, Hill’s changed the pet nutrition world by launching the first veterinarian-prepared food for a pet’s specific health needs. Seven decades and thousands of innovations later, they are still leading the charge in science-led nutrition.

Shop Hill’s Science Diet

Questions & Answers

35 Customer Questions


I need to order the Hills Soy, in dry food. Large bag


My one year old lava doodle is eating a lot of grass and is constantly rubbing her back on stuff in scratching. My thought is the dog food. She's on blue nowhat can I try


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.

4.7
Rated 4.7 out of 5 stars
3098 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Digestibility

85% Positive

Ingredients

87% Positive

Nutritional Value

88% Positive

Palatability

84% Positive

1248 Customer Reviews



Rated 5 out of 5 stars
By Danielle on Dec 25, 2025

Game changer!

My dogs eat this food like it’s a treat! They were originally on Purina Pro Plan but we just made the switch after a bad batch put them off to that food. (No hate

My dogs eat this food like it’s a treat! They were originally on Purina Pro Plan but we just made the switch after a bad batch put them off to that food. (No hate to Purina, we used them for many years.) After that, getting them to eat was a chore, not to mention stressful when my senior dog wouldn’t eat for days at a time. Now they eat as soon as it’s in front of them! Highly recommend if you need a change of food!


Rated 5 out of 5 stars
By Maggie on Dec 31, 2025

Giant kibble for giant dogs!

This has been Novas food for the past 3-4 years now. She’s a retired Great Pyrenees and a senior dog. This keeps her full and happy now that she’s living her best

This has been Novas food for the past 3-4 years now. She’s a retired Great Pyrenees and a senior dog. This keeps her full and happy now that she’s living her best indoor couch potato dog life lol


Rated 5 out of 5 stars
By Leesa on Nov 30, 2025

The speedy shipping

When I adopted my 2 dogs from the pound they came with Science Diet dry food and my vet recommends it too. My dogs gobble it up. I miscalculated and was about to

When I adopted my 2 dogs from the pound they came with Science Diet dry food and my vet recommends it too. My dogs gobble it up. I miscalculated and was about to run out and ordered more yesterday. Got an email that it will be delivered today. I love chewy for all my animals needs. Their customer service has always been the best.


Rated 3 out of 5 stars
By Shelby on Nov 30, 2025

Hole in dog food

I believe the cat food box is cutting into the dog food bag. This is the second time the dog food bag has had a hole in it and dog food is spilling out. I believe

I believe the cat food box is cutting into the dog food bag. This is the second time the dog food bag has had a hole in it and dog food is spilling out. I believe the cat food and the dog food need to be in different boxes if possible. Thank you.


Rated 2 out of 5 stars
By Amber on Nov 12, 2025

Chunks were too big. Dog didn't eat it very well.

Dunno what it was, but my dog didn't get excited when I'd fill her bowl. Sure, after hours of it sitting there she'd eventually eat it, but it was almost like she

Dunno what it was, but my dog didn't get excited when I'd fill her bowl. Sure, after hours of it sitting there she'd eventually eat it, but it was almost like she knew she HAD to eat, so she ate it. I changed once we got through the monstrous bag. The 35-lb bag was HUGE and it lasted about 8 weeks!


Rated 5 out of 5 stars
By Renee on Nov 3, 2025

Rottie approved

Both my dogs absolutely love this food. My German Rottweiler and Aussie/border collie are both picky and never turn this kibble down. I do still add Orijens in for

Both my dogs absolutely love this food. My German Rottweiler and Aussie/border collie are both picky and never turn this kibble down. I do still add Orijens in for a little added protein bc they are extremely active daily and both are under 2 yrs old. Coats are soft and ideal weights.


Rated 5 out of 5 stars
By Sarah on Dec 29, 2025

Great product - vet approves and dog enjoys

We have been feeding our 10 yo sheepadodle this food since she turned 1 or 2. She has never had any issues and is healthy and a great weight.

We have been feeding our 10 yo sheepadodle this food since she turned 1 or 2. She has never had any issues and is healthy and a great weight.


Rated 5 out of 5 stars
By Krista on Jan 10, 2026

Good stuff

Good, larger size kibble than many other Science Diet products. Transition was easy, and poops are solid and fewer.

Good, larger size kibble than many other Science Diet products. Transition was easy, and poops are solid and fewer.


Rated 5 out of 5 stars
By Karen on Oct 29, 2025

Quick Delivery

Some how I had messed up my auto ship, don't ask me how ... haha I had to reorder and my shipment was shipped immediately. Both Blue and Cleo were very happy about

Some how I had messed up my auto ship, don't ask me how ... haha I had to reorder and my shipment was shipped immediately. Both Blue and Cleo were very happy about that. I am always very pleased with Chewy from the shipping all the way back to the customer service.


Rated 5 out of 5 stars
By Terri on Jan 5, 2026

Quick delivery

I have used science diet for over 40 years. All my dogs have passed from old age. All of them had beautiful coats

I have used science diet for over 40 years. All my dogs have passed from old age. All of them had beautiful coats