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Your cart is empty.Hill's Prescription Diet y/d Dry Cat Food is an easy and convenient way to manage a cat's overactive thyroid and the only clinically proven nutrition to decrease thyroid hormone production in 3 weeks when fed as the sole source of nutrition. It’s made in the USA with global ingredients you can trust, and was developed by Hill’s nutritionists and veterinarians. This food is also formulated to promote a urinary environment that reduces the risk of developing struvite and calcium oxalate crystals. Please consult your veterinarian for further information on how Prescription Diet foods can help your cat continue to enjoy a happy and active life.
Bookish
2025-08-26 15:40:24
So my 5 stars is not for the quality of this cat food. Necessarily. Let me explain. If you read the ingredients the food is basically hard nuggets of corn with synthetic vitamins. Would not have touched my precious fur monster's lips before she got sick with hyperthyroidism. We always tried to feed her with the highest quality cat food we could find, all natural, high protein, etc. She got sick anyway. Initially, we were able to get her hyperthyroidism under control with methimazole. And then only a month or so after victorious vet visit where her T levels were normal, she started getting sores on her face and in her ears from the methimazole. Due to the separation period involved with radioactive iodine treatment, we decided to try the food. I was very reticent but after reading through reviews on Amazon (thank you reviewers) I began to think it could work. And it has so far. Our 13yo old cat is back to her normal spoiled self! Her fur is even shiny and she seems to enjoy her hard little corn pellets. We also feed her the canned Y/D but she seems to prefer the kibble overall.
Brian T Satkowiak
2025-07-05 18:40:44
Same as vet sells, half the cost
A. Gift For You
2025-05-07 12:14:11
My cat needed to switch over to this and initially was worried she wouldn’t like it but she took to it right away.
Customer
2025-05-01 21:31:10
We have an extremely picky eater and our cat loves this dry food.
L. T.
2025-04-14 11:09:01
My dearest 18 year old Siamese seems to be doing better with this food. I will do anything to keep him around, cause super smart and cool cats are hard to come by! yep, I even feed him lobsta meat on occasion. I love the looks I get at the fish market when Walter asks me if I want some tail meat for my cats, lol. hey, he has had to live with me all his life, so he deserves the best.I am glad to see him improving, and pray it continues. it is expensive, but how do you put a price on your best friend and loyal companion? I bought him a Siamese twin brother, but I got the type of Siamese that is unstable with that one.UPDATE: He is now 19 :) I just wonder if I can get this to him with 2 new kittens? He does give me the "WTF" stare when those 2 come prancing around, even after 4 months of us all in one house. Can kittens eat this stuff? Now that I have 4 cats, very hard to control who gets what since I free feed with dry food. And yes, litter duty is quite busy. The kittens love to watch me clean the boxes, why can't they learn to help? All that energy needs to be directed to a positive purpose! Other than basically tearing house apart!! 2 kittens together are amazing best freinds, but they play very hard, drop, and wake up to play harder later. Once the bedroom door closes, I swear I hear them say "party time"!
JFL
2025-03-25 16:46:47
I ordered this as a recommendation by my vet due to borderline hyperparathyroidism but didn’t know if it would affect his irritable bowel syndrome or if he would eat it. He is also a VERY picky eater. I opened the bag as soon as it arrived and he came running into the room I was in. I gave him some and he gobbled it down. He LOVES it,and has been eating it without any issues for about 1 1/2 weeks. I won’t know if it has helped his thyroid levels until he has bloodwork again. If it does 5en it would get 5 stars.
nicole r bernier
2025-03-12 11:25:35
My cat has been eating this medicated food for over a year, and it really helped him. Several weeks ago, he stopped eating it, and was losing weight fast. I thought because he was 17, it was because he was declining. We got a new bag -subscribe and save- and I noticed the packaging was different. So I opened it and it was a completely different product and he started eating it like a lion! SO - be aware that there has been a change in product and in our case, it was a life-saver.
Just for Fun
2025-03-07 17:47:22
This cat food seems to be the only thing keeping our 18 year old cat alive. She can't keep much of anything else down. So, we are glad that we found it.That admitted, it is absurdly expensive.
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2025-01-24 13:20:26
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Jacqueline
2025-01-13 14:38:22
Bag was already opened when I received it. Unacceptable!
清水徹
2025-01-12 17:09:37
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