Hill's Prescription Diet y/d Thyroid Care with Chicken Wet Cat Food, 5.5-oz, case of 24

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About This Item

Details

  • Helps to decrease thyroid hormone production, purr-fect for cats with an overactive thyroid.
  • Supports your furbaby’s kidney, heart and urinary health.
  • Helps your best friend maintain lean muscle mass.
  • Promotes skin and coat health.
  • Helps to create a urinary environment that reduces your kitty’s risk of developing urinary crystals.

Ingredient Information

Feeding Instructions

FAQ

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

Hill's Prescription Diet y/d Thyroid Care for Cats

Groundbreaking Nutrition for Thyroid Health

Hill's breakthrough formula was designed to help felines with hyperthyroidism thrive. Cats with this disorder have an overactive thyroid gland—meaning it produces too much of the thyroid hormone—but limiting iodine in your cat's food can help regulate it. Prescription Diet y/d does that and more, all in a tasty kibble your cat will love. You may even see a difference in as little as three weeks.

Clinical Nutrition

With Hill's, it's not just high-quality ingredients that count. Their focus is on the proper balance of nutrients in every recipe. So, Hill's designed food to help pets with health conditions, providing the right nutrients to support their health. Hill's alliance with veterinarians puts them in a position to find a nutrition recommendation for your pet, no matter what health issue your pet is facing.

Formulated by Veterinarians

Hill's Prescription Diet started with a veterinarian's belief that some health issues could be managed through nutrition. What began as a theory has now been proven through extensive research by a team of over 220 vets, PhD nutritionists and food scientists. The results can be seen in Hill's Prescription Diet therapeutic pet foods.

Meeting the Highest Standards

Providing a food that delivers exactly what it says it does is Hill's number one priority. In fact, they perform over five million safety and quality checks every year. They've established relationships with trusted suppliers and will only accept ingredients that meet stringent standards.

The Taste Factor

You might know that Hill's Prescription Diet is good for your pet, but she's only concerned with the taste. Even though they place a heavy emphasis on nutrition, Hill's hasn't forgotten about palatability. Savory ingredients are combined to produce foods with enticing aromas, textures, and shapes that your pet can't resist.

How Hill's y/d Helps Manage Thyroid Health

Key Nutrients

  • Limited Iodine
  • High in omega-3 fatty acids
  • Controlled phosphorus and low sodium

Health Benefits

  • Decreased T4 production
  • Supports kidney, heart and urinary health
  • Promotes skin and coat health

About Hill's Prescription Diet

Hill's mission is to help enrich and lengthen the special relationships between people and their pet. Their Prescription Diet product line delivers clinically proven nutrition that supports common pet health concerns, from digestive and urinary health to aging and weight management.

Shop Hill's Prescription Diet

Questions & Answers

15 Customer Questions


If my cat does not like this food, are there free returns?


How much of the wet canned thyroid food should a cat be given daily.

Answer by ChewyJul 23, 2020
Navigate to the "Feeding Instructions" tab just below the product photos. There you will find a feeding chart based on your pet's weight.

is this a pate food

Answer by ChewyApr 26, 2018
This is a pate formula.

how much do you feed

Answer by ChewyMar 24, 2020
For a complete list of feeding recommendations, please refer to the following image below.

3.9
Rated 3.9 out of 5 stars
1130 Ratings

719 Customer Reviews



Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 5 out of 5 stars
By Vicki on Jan 26, 2026

Hyperthyroid & Struvite Oxidation formula

It was great and Zeus ate this with no trouble. We had to stop though, because his labs didn't show improvement on his thyroid. He's on medication now, and cannot

It was great and Zeus ate this with no trouble. We had to stop though, because his labs didn't show improvement on his thyroid. He's on medication now, and cannot eat this food when he's taking medication. He may need surgery. This food is great if the thyroid concern is caught early. But more advanced thyroid concerns require medication instead of the food. Excellent food, but we're too late in the diagnosis to continue using this. I hope other people are able to succeed with thyroid control by diet. I joke that Zeus weighs negative 3 pounds, but it's a very serious problem that needs quality veterinary care.


Rated 5 out of 5 stars
By Britt on Jan 3, 2026

Picky Cat Approved!

Our 17yr old was recently diagnosed with hyperthyroidism and was dropping weight quickly. Our vet wanted to do progressive options starting with diet management

Our 17yr old was recently diagnosed with hyperthyroidism and was dropping weight quickly. Our vet wanted to do progressive options starting with diet management. Given how picky Minion is, I was worried she'd snub the food. Instead, she loves it! It's a really thick pate that's almost like a dry braunschweiger - which makes sense given that pork liver is one of the main ingredients. I did follow the suggestion of some other owners and mix a little warm water in to make it easier to eat. Breaking the meal into two or three smaller ones means she's cleaning the bowl each time and getting the diet she needs!


Rated 5 out of 5 stars
By Crystal on Jan 16, 2026

Does the Job

While my sweet girl is incredibly picky when it comes to wet food, she took to it nearly instantly. There was a whole day she wouldn't touch it and I could tell

While my sweet girl is incredibly picky when it comes to wet food, she took to it nearly instantly. There was a whole day she wouldn't touch it and I could tell it was because she was bored of the flavor. She's used to a rotation of flavors but being switched to this diet she had to learn its only the single flavor. I know she misses her old wet food but as long as this keeps her happy, she'll be just fine with it


Rated 5 out of 5 stars
By Angela on Jan 23, 2026

Kitty can’t handle the meds, this is a literal lifesaver!

Hyperthyroid meds aren’t tolerable by my 14 year old kitty, this food is the option for her. It took her a while to actually eat it at first, but it grew on her

Hyperthyroid meds aren’t tolerable by my 14 year old kitty, this food is the option for her. It took her a while to actually eat it at first, but it grew on her. Very thankful this food exists!


Rated 1 out of 5 stars
By Lisa on Nov 22, 2025

Frustrating Delivery

My cat is on special food for hyperthyroidism. $86/24 cans. I have auto shipped several times and on this order they had the wrong address so could not deliver

My cat is on special food for hyperthyroidism. $86/24 cans. I have auto shipped several times and on this order they had the wrong address so could not deliver. So had to wait a second day. The 2nd attempt was delivered to the wrong address?!? I had to go on a nbhd hunt for it. The box clearly had the right address. To boot, several of the cans arrived dented. Frustrating!


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

It works!

My elderly cat Dahlia has been on this food and the Wellness brand for 3 years and the last several blood tests showed normal thyroid!! Previous vet said diet wouldn't

My elderly cat Dahlia has been on this food and the Wellness brand for 3 years and the last several blood tests showed normal thyroid!! Previous vet said diet wouldn't work but we proved her wrong. Current vet is amazed it works but is supportive of diet therapy since testing provides it works.


Rated 5 out of 5 stars
By kim on Dec 9, 2025

Lucy loves it!

My finicky girl loves this food. It’s not dry like some of the reviews say. I will add a little hot water when it comes out of the refrigerator to warm it since

My finicky girl loves this food. It’s not dry like some of the reviews say. I will add a little hot water when it comes out of the refrigerator to warm it since most cats do not like cold food. Lucy also loves the dry food version of Y/D food!


Rated 5 out of 5 stars
By Norma on Oct 11, 2025

Excellent service

I had been ordering my cats prescription food from another website. I had noticed that sometimes she liked it and other times not so much. Also the consistency of

I had been ordering my cats prescription food from another website. I had noticed that sometimes she liked it and other times not so much. Also the consistency of the food seemed different with each order. The order I received from Chewy was fresh and my kitty has been eating it and asking for more. I suspect that where I had been purchasing her food from was simply buying up old and possibly outdated supplies from who knows where and reselling it. Delivery from Chewy was very fast and ordering and down loading her prescription made the whole process quick and efficient. I am now a faithful customer.


Rated 1 out of 5 stars
By Jeff on Nov 2, 2025

4 cans of Spoiled cat food

I reviewed it in the dry cat food email that was sent to me. But I will tell you again. Oct 13th I ordered a case of this food for Max. The case cost $87. Just the

I reviewed it in the dry cat food email that was sent to me. But I will tell you again. Oct 13th I ordered a case of this food for Max. The case cost $87. Just the other day I had to throw 4 cans away at $3.60/can because the seal was was broken and the cans were dented. Sure would be nice if I could get my 4 cans replaced through no fault of my own. Jeff Roozen


Rated 3 out of 5 stars
By Rebecca on Dec 13, 2025

8 of the 24 cans were dented, most on both sides of the can.

It controls my cat’s thyroid issue but I am disappointed in the way the product arrived. I have had a few cans dented before but this shipment is making me consider

It controls my cat’s thyroid issue but I am disappointed in the way the product arrived. I have had a few cans dented before but this shipment is making me consider purchasing elsewhere.