Hill's Science Diet Senior Adult 11+ Chicken Recipe Dry Cat Food, 3.5-lb bag

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  • Senior

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About This Item

Details

  • Made in the USA with global ingredients you can trust.
  • High-quality protein supports lean muscles.
  • This recipe is designed to keep your older furbaby agile and more alert.
  • Prebiotic fibers and antioxidants support digestion, immune system, and organ health.
  • 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 Cat 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 cat prefers crunchy kibble or savory stews, these foods have 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.

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Questions & Answers

19 Customer Questions

what is the new formula ingredients? new formula guaranteed analysis dry matter basis?

what is the difference between old and new formula ingredients and dry matter % of guaranteed analysis? is your item description of ingredients for the new or old formula?

round or triangle? 22 yr old wont eat triangle pieces.

Answer by Chewy • Apr 13, 2021
This kibble is in semi round 4mm pieces.

What are the calcium phosphorous and magnesium percentages?

Answer by Chewy • Feb 26, 2022
This recipe has a Phosphorous content of 0.69%, a Calcium content of 0.86% and a Magnesium content of 0.086% on a dry matter basis.
Reviews
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4.6
Rated 4.6 out of 5 stars
1872 Ratings
Terms & Conditions

Customers Mention

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

Digestibility

84% Positive

Ingredient Quality

86% Positive

Nutritional Content

86% Positive

Palatability

81% Positive

728 Customer Reviews

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

Great dry cat food for Senior cats

I have a 17yr old cat with several health concerns including sensitive stomach. Like most cats he’s a picky eater but loves this dry food and it doesn’t upset his

I have a 17yr old cat with several health concerns including sensitive stomach. Like most cats he’s a picky eater but loves this dry food and it doesn’t upset his stomach. The kibble size is small enough that he’s able to eat it even with some teeth issues. I had him on the Adult formula from this brand but the kibble size was a little larger and he had some difficulty eating it at times. I slowly transitioned him to this kibble over the course of 3 weeks or so with no issues. Our vet recommended the Senior formula and so far (on our second bag) he’s doing great.

Rated 5 out of 5 stars
By Debbie on Dec 27, 2025

Cats Love It

The cats love it. I also purchased the ROYAL CANIN FELINE HEALTH NUTRITION AGING 12+ Loaf in Sauce to fortify their diet after doing some research. Although it's

The cats love it. I also purchased the ROYAL CANIN FELINE HEALTH NUTRITION AGING 12+ Loaf in Sauce to fortify their diet after doing some research. Although it's still to early to determine if it is helping with age related issues (a little arthritis & unhealthy coat), they love both products. I'm hoping this does the trick.

Rated 1 out of 5 stars
By Brett on Dec 15, 2025

Bad Smell!!

I have been buying this food for about 6 months for my 17 and 11 year old cat. The 17 year old has ckd. Neither cat will touch it now. I opened two fresh bags

I have been buying this food for about 6 months for my 17 and 11 year old cat. The 17 year old has ckd. Neither cat will touch it now. I opened two fresh bags and they both smell very different than before. Our 17yr old cat started getting sick because he wasn’t eating. I will be asking for a refund!

Rated 5 out of 5 stars
By Deborah on Dec 12, 2025

Science Diet Senior Adult 11+

I started using this food for my then 12 year old cat, many years ago. She is now almost 19, and doing so well. This and some soft food do wonders for her. If you

I started using this food for my then 12 year old cat, many years ago. She is now almost 19, and doing so well. This and some soft food do wonders for her. If you have an older cat and or one that may have issues with their urinary or kidneys. I recommend this food.

Rated 5 out of 5 stars
By Kathy on Jan 18, 2026

Chewy is the BEST delivery service!

Hill's Science Diet has been a staple item in our house for years. Our cats have benefited from the food and we've been pleased with their over all health.

Hill's Science Diet has been a staple item in our house for years. Our cats have benefited from the food and we've been pleased with their over all health.

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

My cat stays healthy

My cat loves it and is 17 yrs old. She's been on this brand for most of her life and has never gotten sick. Very pleased to recommend this brand of dry cat food

My cat loves it and is 17 yrs old. She's been on this brand for most of her life and has never gotten sick. Very pleased to recommend this brand of dry cat food!

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

My finicky cat really likes it

Our vet suggested this Adult 11+ for our two senior cats, so far they both love it and the finicky one seems to be enjoying the taste and texture more than our old

Our vet suggested this Adult 11+ for our two senior cats, so far they both love it and the finicky one seems to be enjoying the taste and texture more than our old dry food.

Rated 3 out of 5 stars
By john on Dec 10, 2025

Hill's Science Diet Senior Adult 11+ Chicken Recipe Dry Cat Food, 15.5-lb bag

I'm truly disappointed with Hill's products. My cats have slowly rejected all of their food products. I would test out any Hill's products before buying in bulk

I'm truly disappointed with Hill's products. My cats have slowly rejected all of their food products. I would test out any Hill's products before buying in bulk.

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

My cat loves it.

My cat is 14 and has very few teeth. This food for seniors is softer than regular and easy for me to pound down so she can still eat her favorite dry food.

My cat is 14 and has very few teeth. This food for seniors is softer than regular and easy for me to pound down so she can still eat her favorite dry food.

Rated 5 out of 5 stars
By Victoria on Nov 16, 2025

She eats it

Hard to find things a cat 18+ can eat. Wish the kibble was a little bit smaller, but I haven’t found many. She gets wet food, but it’s nice to have to have some

Hard to find things a cat 18+ can eat. Wish the kibble was a little bit smaller, but I haven’t found many. She gets wet food, but it’s nice to have to have some kibble in the bowl to snack on.