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Hill's Science Diet Science Diet
Hill's Ideal Balance Ideal Balance
Hill's Prescription Diet Prescription Diet
Hill's Healthy Advantage

Kitten Kitten
Adult 1+ Adult 1+
Mature <br/>Adult 7+
Adult 7+
Senior 11+ Senior 11+

Puppy Puppy
Adult 1+ Adult 1+
Mature <br/>Adult 7+
Adult 7+
Senior 11+
Senior 11+

Grain Free


By Health Conditon

Hill's® Prescription Diet® y/d® Feline - canned

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Hill's® Prescription Diet® y/d® Feline

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Hill's® Prescription Diet® y/d® Feline is the safe, effective and easy way to manage thyroid health. Clinically proven to improve thyroid health in 3 weeks when fed as the sole source of nutrition.

Where To Buy

Key Benefits

How It Helps

  • Decreases T4 hormone production
  • Supports kidney, heart & urinary health
  • Visible improvement in skin & coat
  • Helps support a healthy body condition
  • Supports a healthy immune system

How It Works

  • Limited iodine
  • Controlled phosphorus and low sodium
  • High in taurine, L-carnitine & omega-3 fatty acids
  • Promotes desirable urine pH
  • Clinically proven antioxidants

Additional Info

Please consult your veterinarian for further information on how our Prescription Diet® foods can help your cat to continue to enjoy a happy and active life.


*Urine pH of individual cats may vary due to complicating factors such as time of feeding before urine collection, type of urine collection, individual animal variation, and test methodology.

Feeding Guide

Daily Feeding Guide:

Because iodine intake from other food sources -- treats, another cats food, etc. -- can compromise the effectiveness of low-iodine nutrition, its critical that you follow your veterinarians feeding instructions carefully and feed only y/d.
Adjust feeding amounts as necessary to maintain optimal weight. If you are unsure, ask your veterinarian.
For best results & safety practices:

  • Cover and refrigerate unused portion.
  • Gradually transition to your pet's new food over a 7 day period.
  • Exclusively feed the recommended Prescription Diet dry food & canned food.
  • Keep fresh water available at all times.
  • Have your veterinarian monitor your pet's condition.

Adult maintenance - using 5.5 oz (156 g) can

Weight of Cat - lb (kg)Amount per Day
6 lb (2,7 kg)1 can
8 lb (3,6 kg)1 1/4 cans
10 lb (4,5 kg)1 1/3 cans
12 lb (5,4 kg)1 1/2 cans
14 lb (6,4 kg)1 3/4 cans
16 lb (7,3 kg)2 cans
18 lb (8,2 kg)2 cans
Animal feeding tests using AAFCO procedures substantiate that Hill's® Prescription Diet® y/d® Feline provides complete and balanced nutrition for maintenance of adult cats

Average Nutrient and Caloric Contents

Canned 193 kcal / 5.5 oz (156 g)

NutrientDry Matter1 %
Crude Fiber3.0
Carbohydrate / NFE31.3
Iodine0.2 ppm


1The nutrient in the product after moisture is removed. It is used to make direct comparisons of nutrient profiles of products with differing moisture contents.


Water, Pork Liver, Pork By-Products, Chicken, Corn Flour, Rice, Chicken Fat, Chicken Liver Flavor, Powdered Cellulose, Calcium Carbonate, Fish Oil, Natural Flavor, L-Lysine, Potassium Chloride, DL-Methionine, vitamins (Vitamin E Supplement, Thiamine Mononitrate, Ascorbic Acid (source of Vitamin C), Niacin Supplement, Pyridoxine Hydrochloride, Calcium Pantothenate, Vitamin B12 Supplement, Riboflavin Supplement, Folic Acid, Vitamin D3 Supplement, Biotin), Guar Gum, Taurine, Choline Chloride, Salt, Cysteine, Dicalcium Phosphate, L-Carnitine, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganese Sulfate), Beta-Carotene.

Hill's® Prescription Diet® y/d® Feline - canned yd 052742149615,052742149608 1496

Rated 4 out of 5 by from Lifesaver Was recommended by my vet for my 16 yr old cat. He'd had a major thyroid imbalance, was down to 8 lbs, lethargic, diarrhea, bad breath, dandruff. I went in to discuss having him put to sleep. The vet gave me a starter pack and after 1 month he began a visible recovery and will eat this Y/D exclusively for the remainder of his life. After 5 months he is chunky, full of spunk and back to his old self. This food was a way better option than a daily pill. Than you for providing this food! I rated it low on taste because he only eats it because he has no other options,not course he would prefer his old supermarket junk food. He does however LOVE the YD crunchies,
Date published: 2013-10-12
Rated 4 out of 5 by from This product works well to keep our cat healthy I like that my cat can stay healthy by eating food instead of taking medication. My only suggestion is that you might also make this product in smaller cans since she will only eat 1/2 of the can at a time and only when it is freshly opened. She will not eat it after being tightly sealed and stored in the refrigerator. Even heating slightly in the microwave does not help. The veterinarian suggested mixing in low salt chicken broth or canned pumpkin, but that did not help. I feel like I am wasting so much food!
Date published: 2012-11-26
Rated 4 out of 5 by from my alternative to the cat thyroid medication My cat likes the food best when I first open the can. I cover the remaining can food with tin foil and put it in a plastic deli type container with lid to seal it the best I can. It always begins to get very dry. I heat it a little in the microwave to get the chill out and I add a little water. She eats it but she is not thrilled with it. Please make this y/d thyroid can food to be more moist or not to dry out in this manner. She also eats the y/d dry food so she has a choice. She eats it a little at a time, because she is still hungry or there is no can food left in her dish, I want her to eat both. Once again she is not really thrilled.
Date published: 2014-09-18
Rated 3 out of 5 by from Need additonal flavors My poor kitty who has been a dry food eater for 14 years, has been switched to the Thyroid Health Food. I tried the dry, she would not touch it. I changed her to the wet food, the first few weeks, she gobbled it down. For the next month or so, I can barely get a can of food down her. THe vet suggested feeding her at least 1 can & a half. You need to have this food in several flavors. How would like to eat the same in and day out......7 days a week for 365 days a year ???? Please respond.
Date published: 2014-04-13
Rated 5 out of 5 by from So far so good My 15 year old cat has been on this diet for one year this month. She has gained a half pound and does not throw up all the time like she did before. I have another cat and that makes it hard to make sure she does not get his food. I have had a few occasions where she has gotten his food but for the most part she only gets this food and likes it. I use the canned and then keep the dry out for her. My other cat likes the food too but I make sure he gets some food with iodine every day. I had him checked at his last appointment and his thyroid is fine.
Date published: 2013-01-16
Rated 1 out of 5 by from Socks doesn't approve Dear Hills, please improve your canned y/d food. I would likes my foods to have real meats and vegetables in it. The y shouldn't stand for yucky and I shouldn't be stuck eating just this one flavor for the rest of my life. ~Socks The Ideal Balance canned dog food we won looks so appealing while this looks most unappealing and smells awful. I can't blame my cat for not wanting to eat it and trying to sneak the dog food. It certainly isn't an easy way to manage my cats thyroid health as he hates the food and is constantly trying to find other food to eat. In a multiple pet household it is very changeling to keep other food out of his reach as he will literally take the dogs food away from them while they are eating. They thyroid pills (which Socks can no longer take due to problems with anemia) were much easier and cheaper.
Date published: 2013-11-23
Rated 3 out of 5 by from Need smaller portion cans My cat has been on a restricted diet of y/d dry and wet for approximately 8 months. She enjoys the dry food, but does not take more than a few bites of the wet canned y/d at one feeding. It would be great if the wet food came in much smaller single-portion cans. Overall, the y/d diet has preserved my geriatric cat's life. She no longer takes the oral meds, has stopped vomiting, has stopped losing weight. She is not gaining weight and is still very thin, but her overall health and demeanor is improved due to strict diet of Hill's y/d. At 19 years old, surgery or radioiodine are not practical management strategies for her thyroid tumor.
Date published: 2015-03-26
Rated 5 out of 5 by from This products really works. I would definitely recommend it. I have an 13 years old cat that was 16 pounds. Then I noticed a fast and rapid weight loss. He was diagnosed with hypothyroid condition. After only two months of eating only the yd product there was a great improvement. I sometime add a bit of water to the canned food just for verity. He is now at a steady 10 pounds and all his blood work is great.
Date published: 2013-08-13
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