Hill's Science Diet Senior Adult 6+ Large Breed Chicken Meal, Barley & Rice Dry Dog Food, 66-lb bundle

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About This Item

Details

  • Optimal levels of key nutrients help support your furbaby’s eye, heart, kidney, and joint health.
  • High-quality protein promotes lean muscles.
  • Natural sources of glucosamine and chondroitin support healthy joints.
  • Natural fibers promote healthy digestion.
  • This recipe is made with tasty, natural ingredients.

Ingredient Information

Feeding Instructions

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

Science Diet Senior Dog Nutrition

Hill’s Science Diet senior foods are gentle on aging kidneys and joints, with the right balance of nutrients for an aging heart.

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 senior 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 satisfaction.

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

16 Customer Questions


What is the difference between Chicken meal and chicken? Benefits?

Answer by ChewyAug 13, 2019
Chicken meal is rendered chicken meat that has been dried and ground up, and includes clean flesh, skin, and/or accompanying bone. But if you see a bag of dog food that proudly states it’s made with “Real Chicken,” it’s referring to a clean combination of chicken flesh and skin. Chicken meal does not contain feathers, heads, feet, or intestinal contents. Chicken meal is safe and nutritious for your dog

My 65 lb lab mix is 11 1/2 years old. Is this a good type for her? Are the nuggets very large? She is used to a smaller “bite”

Answer by ChewyJul 17, 2019
This variety is suitable for large breeds, 6 years of age and older. The kibble measures 15 x 14 millimeters (roughly 1/4 inch in diameter).

How many calories per cup?

Answer by ChewySep 22, 2019
This recipe contains approximately 353 calories per cup.

Is this food is good for senior German Shepperd?

Answer by ChewyOct 09, 2019
This recipe is formulated for specific aging needs of large breed dogs.

4.7
Rated 4.7 out of 5 stars
1351 Ratings

Customers Mention

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

Digestibility

91% Positive

Ingredients

91% Positive

Nutritional Value

90% Positive

Palatability

87% Positive

487 Customer Reviews



Rated 5 out of 5 stars
By Debra on Jan 19, 2026

Life changing

Stella has had 'knee' replacement surgery about 3 years ago and at 10 years old, she started to have problems climbing stairs, being able to go for a mile walk,

Stella has had 'knee' replacement surgery about 3 years ago and at 10 years old, she started to have problems climbing stairs, being able to go for a mile walk, etc. We did try different medications through our vet and they may have been working but we were concerned about the 'unnatural' treatment. I went online and read some reviews from other dog owners about Hill's Science Diet Senior and was pleasantly surprised by the feedback. I ordered a bag and started putting it out in the morning. Her last surgery to remove some non cancerous tumors had left her stomach a mess. Her teeth had been checked and a broken molar had been removed. Now she was ready to start eating kibble again. As I said, I put it out and she started eating it for her morning breakfast. Within a week, she was not only moving better but she was GALLOPING around the park! I was amazed! I give Hill's Science Diet a big chunk of credit for helping our senior dog feel years younger! Thank you.


Rated 5 out of 5 stars
By Lauren on Feb 6, 2026

Brought back my old girls spark!

My dog has been on the same food for some time. But then she stopped eating. I tried wet food mixed in and she'd barely touched it. So I switched and WOW!!! She

My dog has been on the same food for some time. But then she stopped eating. I tried wet food mixed in and she'd barely touched it. So I switched and WOW!!! She will be 12 in June and has been so full of life and energy again after this switch. I'm beyond grateful that something as easy as switching to a better food option could bring her back.


Rated 5 out of 5 stars
By Sarah on Feb 1, 2026

How much Sister loved it

Sister is a spoiled girl!! She is getting older in years but stills acts like a puppy sometimes. I noticed her not wanting to eat her food, her coat was dull, and

Sister is a spoiled girl!! She is getting older in years but stills acts like a puppy sometimes. I noticed her not wanting to eat her food, her coat was dull, and she wasn’t as active. We ordered this food and she eats all her food now, her coat is getting shine back, and her spunky self is returning.


Rated 4 out of 5 stars
By Carolyn on Feb 11, 2026

She really likes it.

Raven was getting very picky after a couple of major surgeries and then getting Vestibular disease which makes them dizzy. I used homeopathics to get her back on

Raven was getting very picky after a couple of major surgeries and then getting Vestibular disease which makes them dizzy. I used homeopathics to get her back on her feet in four days. She likes this stuff but the cost is up there.


Rated 3 out of 5 stars
By Peter on Feb 14, 2026

Disappointed

The dry food hardly expand in my dogs dish after adding hot water and waiting 30 minutes. I’ll be returning to Blue Buffalo as soon as my dog finishes all the Hills

The dry food hardly expand in my dogs dish after adding hot water and waiting 30 minutes. I’ll be returning to Blue Buffalo as soon as my dog finishes all the Hills Science. Unfortunately I purchased 110 lbs.


Rated 5 out of 5 stars
By Sarah on Nov 20, 2025

Change in senior dog's energy

This was the first time I have changed my dog's food in many years, he is a large senior dog and the vet recommended I change his food to something that includes

This was the first time I have changed my dog's food in many years, he is a large senior dog and the vet recommended I change his food to something that includes grains. I also wanted to search for a food that catered to large dogs, as well as seniors. He loves the taste and his stomach handled the transition very well. His energy already seems to have improved, and he is running again in the yard. He has arthritis and IVDD so he has not had this much movement in about a year, so I am very happy with the quality of this food, it is worth the huge price jump in my opinion.


Rated 5 out of 5 stars
By Sheena on Jan 6, 2026

Pet eating

My lab has been have neuro issues. Hasn’t had energy, sleeping or eating which is strange for a Lab. Switched to this and he never skips a meal, he plays with his

My lab has been have neuro issues. Hasn’t had energy, sleeping or eating which is strange for a Lab. Switched to this and he never skips a meal, he plays with his sister now and has energy and hasn’t had a neurological issues since he’s been on it!


Rated 5 out of 5 stars
By Dana on Dec 13, 2025

Delicious and Nutritious

My boy LOVES this food and has been thriving on it for several years. Always fresh. Perfect size for my 100 pound baby. He’s 12 and has no issues. Great for his

My boy LOVES this food and has been thriving on it for several years. Always fresh. Perfect size for my 100 pound baby. He’s 12 and has no issues. Great for his teeth, joints, digestion. Great price for the large size.


Rated 5 out of 5 stars
By Toni on Dec 22, 2025

Excellent service

I really appreciate being able to talk to a live person 24/7. Also, the live person in in the US and speaks fluent English. I also appreciate the very fast delivery. Chewy

I really appreciate being able to talk to a live person 24/7. Also, the live person in in the US and speaks fluent English. I also appreciate the very fast delivery. Chewy is the BEST!!!


Rated 5 out of 5 stars
By Linda on Nov 18, 2025

The 33# bag is a good value

Cassie was on Large Breed Adult and I wanted to switch to Senior-she is 11. I took 2 weeks to switch and her poops were wetish and sticky (to the cement). I had

Cassie was on Large Breed Adult and I wanted to switch to Senior-she is 11. I took 2 weeks to switch and her poops were wetish and sticky (to the cement). I had to put her on Proviable to get them to the regular consistancy. Now they both love the food!