HILL'S PRESCRIPTION DIET y/d Veterinary Cat Food for Thyroid Care, dry
HILL'S PRESCRIPTION DIET y/d Veterinary Cat Food for Thyroid Care, dry
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HILL'S PRESCRIPTION DIET y/d Veterinary Cat Food for Thyroid Care, dry

Where HILL'S PRESCRIPTION DIET y/d Veterinary Cat... fits in your dog's day
Three short notes on who this product suits, how owners use it and what they keep an eye on, with your vet as the person to ask about health questions.
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1Who it's for
Owners looking for food, chews or training treats that match their dog's size, life stage and the feeding plan they already follow.
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2How to use it
Check the feeding table and switch foods gradually over several days.
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3What owners notice
Owners keep an eye on how eagerly their dog eats, how the portion fits into the rest of the day and whether the pack size suits the way they shop.
About this product
HILL'S PRESCRIPTION DIET y/d is a dry veterinary cat food made with controlled phosphorus, reduced sodium and omega-3 fatty acids from fish oil. Hill's nutritionists and veterinarians formulated the y/d line, and the food is fed as the only source of nutrition. It is a prescription diet, so a veterinarian's authorization is needed before purchase.
How y/d is fed
The brand states that y/d should be given as the sole source of nutrition, with no other food alongside it. Consistent, exclusive feeding over the long term is described by Hill's as critical for the diet's benefits, which means the cat stays on y/d rather than alternating with other foods.
| Brand | HILL'S PRESCRIPTION DIET |
|---|---|
| Product line | y/d |
| Food form | Dry |
Does this food suit your cat's situation?
y/d is sold only as a prescription diet, so the first check is a veterinarian's authorization for your cat. The second check is the feeding routine: the food is meant to be the only source of nutrition, and Hill's states that long-term feeding without other foods is critical for the diet's benefits. A household that wants to mix y/d with other food, treats or a second diet is outside what the brand describes.
What is in the kibble
- The dry formula has controlled phosphorus and reduced sodium levels.
- Omega-3 fatty acids from fish oil are part of the recipe, alongside omega-6 fatty acids.
- High levels of L-carnitine are included in the formula.
- Hill's nutritionists and veterinarians formulated the y/d line.
- The food is made in the USA with ingredients sourced globally.
Questions about Hill's y/d
Do I need a prescription to buy this cat food?
Yes. y/d is available only as a prescription diet, and Hill's advises consulting your veterinarian before feeding it.
Can I feed y/d alongside other food?
No. Hill's states the food should be fed as the sole source of nutrition, and that consistent, exclusive long-term feeding is critical for its benefits.
What form does this Hill's y/d food come in?
It is a dry cat food from the HILL'S PRESCRIPTION DIET y/d line.
Which fatty acids does the recipe contain?
The formula contains omega-3 fatty acids from fish oil and omega-6 fatty acids, plus high levels of L-carnitine.
Where is this cat food made?
It is made in the USA with global ingredients.
Product details
| Brand | HILL'S PRESCRIPTION DIET |
|---|---|
| Product type | Veterinary cat food |
| Department | Cat Supplies |
| Sold by | DogJointly, operated by YALEO LLC |
| Delivery | Free standard US delivery, usually 7 to 14 business days after 1 to 3 days to prepare |
| Returns | 30 days on unopened items in their original packaging, with damaged or wrong items covered at our cost |
Delivery and tracking
Standard delivery is free to every US address, we prepare orders in 1 to 3 business days, delivery usually takes 7 to 14 business days, and the tracking link arrives by email when the parcel ships.
Returns and refunds
You can return unopened items in their original packaging within 30 days of delivery. Damaged, faulty or wrong items are replaced or refunded at our cost, so please read the refund policy and contact us before you send anything back.
How Subscribe and Save works
Choose the subscription option above the cart button to receive this product on a regular schedule at the lower subscription price. You can skip a delivery, change the schedule or cancel from your account or by writing to support@dogjointly.com.
Multi-buy savings
Pick 2, 3 or 4 units in the quantity cards to save 10, 15 or 25 percent on the item price. The saving is shown in the cart before checkout, so you can compare the total with a single unit.
Labels, ingredients and your vet
Ingredient lists and serving tables can change between batches, so the label on the pack you receive is the reference to follow. Please ask your vet before starting a supplement, especially for a senior dog or a dog on medication.
Questions about this product
Is HILL'S PRESCRIPTION DIET y/d Veterinary Cat Food for Thyroid Care, dry available in the United States?
Yes, it is in stock at DogJointly and ships free to US addresses, usually within 7 to 14 business days after 1 to 3 days to prepare.
How should I compare HILL'S PRESCRIPTION DIET y/d Veterinary Cat... with similar products?
Compare the brand, format, serving table and pack size in the details above with similar items in Cat Supplies, and check the choice with your vet.
Where can I find delivery and returns information?
Delivery and returns are summarised on this page and set out in full in the shipping and refund policies linked in the footer of every page.
Guides and order help
Reading that helps you compare products, plus the pages that answer delivery and return questions.










