Hill's Prescription Diet y/d Thyroid Care Original Dry Cat Food
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Hill's Prescription Diet y/d Thyroid Care is the safe, effective and easy way to manage thyroid health. Clinically proven nutrition to restore thyroid health in 3 weeks.
Key Benefits- Clinically proven to improve thyroid health in 3 weeks when fed as the sole source of nutrition.
- Decreases T4 hormone production while supporting kidney, heart and urinary health.
- Helps support a healthy body condition and a healthy immune system while also promoting a visible improvement in skin and coat.
- Formulated with S+OXSHIELD to meet specific nutrient standards, shown to promote a urinary environment that helps reduce the risk for struvite and calcium oxalate crystals.
- Offers same great taste and benefits as they did prior to the introduction of the S+OXSHIELD seal.
Veterinary Authorization
This item needs authorization from your veterinarian. Simply provide your pet and vet clinic information at Checkout and we'll follow up with your veterinarian to confirm. If you have a copy of your authorization, you can expedite the process by uploading a scan or photo of it to the Prescriptions section in your account or your order confirmation. You can also email it to vetdiet@chewy.com.
Diet Transitioning
Pets can be sensitive to sudden changes in their diets. For this reason, it is extremely important to follow a gradual transition plan to best support your pet's health and product effectiveness. Ask your Veterinarian about the best way to transition your pet to a new food.
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Item Number69819
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Weight8.5 pounds
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LifestageAdult
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Food FormDry Food
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Special DietPea-Free, Veterinary Diet
Corn Gluten Meal, Pork Fat, Whole Grain Corn, Soybean Mill Run, Egg Product, Chicken Liver Flavor, L-Lysine, Potassium Citrate, Lactic Acid, Dicalcium Phosphate, Fish Oil, Choline Chloride, Calcium Carbonate, Calcium Sulfate, DL-Methionine, Taurine, L-Tryptophan, Brewers Dried Yeast, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Calcium Pantothenate, Vitamin A Supplement, Riboflavin Supplement, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Biotin, Vitamin D3 Supplement), minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganese Sulfate), L-Carnitine, Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene
Caloric Content517 kcal/cup
| Guaranteed Analysis | |
|---|---|
| Crude Protein | 30.0% min |
| Crude Fat | 20.0% min |
| Crude Fiber | 3.5% max |
| Phosphorus | 0.45% min |
| Phosphorus | 0.85% max |
| Sodium | 0.3.0% max |
| Iodine | 0.2% max |
| Taurine | 0.15% min |
| Carnitine | 200 ppm min |
| Weight | Daily Feeding (cups) |
|---|---|
| 6 lbs | 1/3 |
| 8 lbs | 3/8 |
| 10 lbs | 1/2 |
| 12 lbs | 5/8 |
| 14 lbs | 2/3 |
| 16 lbs | 3/4 |
| 18 lbs | 3/4 |
Pets can be sensitive to sudden changes in their diets. For this reason, it is extremely important to follow a gradual transition plan to best support your pet's health and product effectiveness. It is recommended to follow at least a 7-day transition plan before exclusively feeding your pet a new food. Cats will often refuse mixed diets, so we recommend adding the new food to a separate bowl from the old food. Start by mixing 75% of your pet's current diet with 25% of the new diet on Day 1 and Day 2. On Day 3 and Day 4, mix 50% of the current diet with 50% of the new diet. On Day 5 and Day 6, mix 25% of the current diet with 75% of the new diet. On Day 7, you can feed your pet the new food exclusively. Ask your Veterinarian about the best way to transition your pet to a new food.
| Transition Day | Current Diet | New Diet |
|---|---|---|
| Days 1-2 | 75% | 25% |
| Days 3-4 | 50% | 50% |
| Days 5-6 | 25% | 75% |
| Day 7 | 0% | 100% |
Why should I buy veterinary diets from Chewy?
We offer competitive prices and free shipping on orders over $49. Plus, you'll save more if you sign up for automatic refills with Autoship at Checkout. Chewy experts are available 24/7 to answer any questions you have.
How do I order veterinary diets?
- Search for the diet your veterinarian recommends and add it to your cart. You can purchase your veterinary diets along with any other items you need.
- At Checkout, you'll be asked for your pet's name and veterinary clinic information so we can confirm that the item is authorized by your veterinarian.
- Place your order and we'll take care of contacting your veterinarian. If you have a copy of your authorization, you can expedite the process by uploading a scan or photo of it to the Prescriptions section in your account or your order confirmation. You can also email it to vetdiet@chewy.com.
If your clinic needs more information from you or recommends a different diet, we'll let you know immediately.
I have a copy of the authorization from my veterinarian. Can I send it to you?
Yes. If you have a paper copy of your veterinarian's authorization, you can upload a scan or photo to the Prescriptions section in your account or your order confirmation. You can also email it to vetdiet@chewy.com.
Can I use a veterinarian's authorization if it was written by a veterinarian out of state? Yes. We accept valid authorizations from anywhere in the United States, Canada, and U.S. territories such as Puerto Rico.
Why do I need a veterinarian's authorization?
Veterinary diets are formulated with the precise ingredients and nutrients needed to address specific medical issues. Because these diets are formulated for medical issues, veterinary authorization is needed to advise you on the best way to give them to your pet and to monitor your pet's health while they are on the diet.
Can someone else (such as a caretaker or family member) place an order for my pet?
Yes, but we'll need them to contact us and provide the full name of the pet's owner after the order is placed. This is so the veterinary clinic can locate your pet's records when we contact them. Email us at vetdiet@chewy.com or call us 24/7 at 1-800-672-4399.
Do authorizations expire?
Yes. Your veterinarian will tell us when your authorization expires and how many refills you have before they'd like you to check back in with them.
Can I set up automatic refills? Yes. Sign up for Autoship at Checkout and select how often you need refills. We'll automatically ship your veterinary diets for as long as your authorization allows. If you run out of refills or your authorization expires, we'll automatically contact your veterinarian for a new authorization.
What if I have more questions? How can I reach the veterinary diets team at Chewy?
Email us at vetdiet@chewy.com, start a chat on Chewy.com, or call us anytime at 1-800-672-4399. We're here for you 24/7.
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.
Customer Reviews
96% Recommend
96% of reviewersrecommend this product
You've Already Reviewed This Item
284 Reviews
Showing 1-10 of 284 Reviews
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Good food, happy cat
By Petlover on Nov 29, 2021
Unfortunately, my cat has a thyroid condition that calls for either pills or this food. Luckily, he likes the food so no pills! Chewy made the process of prescription food very easy and my kitty is very happy. Excellent service from Chewy fast delivery!
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Thanks for providing this option
By PokesFan on Nov 7, 2021
Our 11-year-old cat liked this food very much, which surprised me as she was not feeling well. Unfortunately something else besides hyperthyroid was going on, and we lost her last week. But I was satisfied and thankful we had this option as I really thought we'd be ordering this for many more years. Thank you!
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Medication no longer needed...excellent food!
By Derby on Oct 7, 2021
My cat's thyroid condition is now 100% held in check by the y/d dry cat food. As soon as she was diagnosed with a thyroid condition we put her on medication and this kibble. She was checked a few months later and the vet said she can either stay on the pills or the food, but not both (we were over correcting). Months later she is still medication free and has had great test results. Wonderful to see her doing so well from a simple diet change. Highly recommend!!
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Picky eater
By Grizzly on Oct 13, 2021
My cat seems to like this food which was a concern. I see you have it in canned form also. Would it be possible to get 1 can to see if he will eat it also. We are on social security and really cannot waste the money to buy a case of wet food if he will not eat it and our vet does not carry this food. Thanks
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Great Food
By Carmen on Aug 13, 2021
My cat is HyperThyroid, and 15 years old. Very picky eater. Had my doubts but ordered the case (24 cans) and figured that if he wouldn't eat it, I could donate it to the vets for people to try before buying a case. Tiny LOVED it. OMG I'm so happy!! Hopefully his Thyroid condition will get better. Ordering the dry today and hopefully he will like it as well. Great service and fast delivery. Chewy, I LOVE you, LOL
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Chewy is THE BEST!
By Baby on Aug 31, 2021
I only wish I had known about Hills prescription cat food in time to save my elderly cat. Unfortunately, she died before the food could help her. I feel sure that it would have helped her recover if only I had started her on it a month earlier. Chewy was great to deal with. Prompt service was appreciated.
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Hill's Prescription Diet Y/D
By Bonky on Sep 17, 2021
My cat was just diagnosed with hyperthyroidism. Saw this food. Claims to help with the condition so meds won't be needed. My cats love this food! Hope it helps, but I won't know for a few months now when I get another blood test on my kitty.
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IF YOUR CAT CANNOT TOLERATE MEDS
By Sandra on Jul 28, 2021
Like the many reviewers who have posted about this product we tried this as an act of desperation. Our eleven year old Calico (Flannel) was diagnosed with hyperthyroidism. We caught it early and her TT4 levels weren't super high (5.9) and the vet said the condition was very treatable with inexpensive meds required twice a day for the rest of her life. Flannel had lost quite a bit of weight and the vet said although she might not gain it back, the goal was to keep her from losing any more and to keep her TT4 levels from going any higher. Within 10-14 days of starting her on ferimazole, Flannel began throwing up several times a day, scratching so hard she was losing fur and completely lethargic Like the many reviewers who have posted about this product we tried this as an act of desperation. Our eleven year old Calico (Flannel) was diagnosed with hyperthyroidism. We caught it early and her TT4 levels weren't super high (5.9) and the vet said the condition was very treatable with inexpensive meds required twice a day for the rest of her life. Flannel had lost quite a bit of weight and the vet said although she might not gain it back, the goal was to keep her from losing any more and to keep her TT4 levels from going any higher. Within 10-14 days of starting her on ferimazole, Flannel began throwing up several times a day, scratching so hard she was losing fur and completely lethargic. Decreasing her meds didn't help. Quality of life being an issue we took her off the meds as I began to research for other options. I found this formula from Hill's, read the reviews and decided to give it a shot. She's been on it for one month today and we just got back from the vets. Her TT4 dropped from 5.9 to 4.3 (at the high end of the normal range)!! We are ecstatic. To be honest, we haven't completely taken her off all other foods but have completely eliminated all seafood (iodine) and cut back on treats as well as cutting in half the amount of wet food we give her at dinner. We follow up in 3 months to see how she's doing but Flannel is behaving like her old self and we're very optimistic as well as grateful for this option. It's expensive but if you can afford it and meds are a problem for your cat, IT WORKS!! … more
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Special Diet
By Jayd on Jul 13, 2021
Recently saw my pet's veterinarian and, due to his age and development of hypothyroidism, he was placed on this special thyroid diet chow. Was very pleased with how quickly it arrived. Only time will tell if he will eat it as he is currently transitioning to the new diet.
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Expensive but cat likes it
By midwesterner on May 30, 2021
My cat has been on this for about 7 weeks. She likes the size and taste of the dry food. The canned food has been a different situation-she acts as if there is something different from one can to the next that she doesn't like. I don't know if the ingredients vary slightly in the cans, but the dry food has been no problem. I only wish the canned food either came in smaller cans or the flavor/ingredients were consistent from one can to the next as she always used to eat canned food regularly along with dry. The vet said that her numbers have improved since eating the y/d only, I just want to get her weight back up. Chewy verified prescription with my vet and shipped out to me very quickly My cat has been on this for about 7 weeks. She likes the size and taste of the dry food. The canned food has been a different situation-she acts as if there is something different from one can to the next that she doesn't like. I don't know if the ingredients vary slightly in the cans, but the dry food has been no problem. I only wish the canned food either came in smaller cans or the flavor/ingredients were consistent from one can to the next as she always used to eat canned food regularly along with dry. The vet said that her numbers have improved since eating the y/d only, I just want to get her weight back up. Chewy verified prescription with my vet and shipped out to me very quickly. … more
