Hill's Prescription Diet ONC Care Dry Cat Food, 7-lb bag

Skip image gallery
Slide 1 of 11

At a Glance

  • Veterinary Diet
  • Adult
$44.99 First Time Autoship Price
this order
Save 35% (up to $20) on your first Autoship order. 
$61.74 Autoship Price
(-5%) future orders
  • Keep saving 5% on every order
  • Get deliveries on your schedule
  • Skip, change, or cancel anytime
$64.99 Chewy Price
($9.29 /lb)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME
Promo, Buy select food, Get 20% off select supplements
In Stock
FREE 1-3 day delivery
Free 365-day returns
This item requires vet authorization.

About This Item

Details

  • Veterinary diet specially formulated to support cats fighting cancer.
  • Dry kibble features an irresistible taste to nourish your furbaby and encourage him to clean up every drop.
  • Flavorful fats and highly digestible protein help your furbaby maintain weight and support daily activity.
  • Formula supports your kitty’s gut bacteria for a healthy GI microbiome balance.
  • Added essential omega-3 fatty acids provide immune system support.

Ingredient Information

Feeding Instructions

Related to This Item

Hill’s. Because you’re only human

Science-led nutrition to help you give more love than humanly possible.

Expert-backed nutrition

Pet food has the power to change lives, which is why we rely on our team of 200+ scientists, nutritionists, vets and other experts who share a love for dogs and cats.

Science does more

We’ve been supporting pets & their people for over 75 years through groundbreaking scientific discoveries and nutrition innovation.

Recommended by Veterinarians

Founded by a vet, endorsed by vets — we’re proud to be a leader in cutting-edge food science and research.

About Hill’s Pet Nutrition

In 1948, Hill’s changed the pet nutrition world by launching the first veterinarian-prepared food for a pet’s specific health needs. Seven decades and thousands of innovations later, they are still leading the charge in science-led nutrition.

Shop Hill’s Pet Nutrition

Compare Similar Items

Hill's Prescription Diet
ONC Care Dry Cat Food, 7-lb bag
Hill's Prescription Diet
ONC Care Dry Cat Food, 7-lb bag
$64.99 Chewy Price
($9.29/lb)
Rated 4.8 out of 5 stars
85Reviews
Hill's Prescription Diet
c/d Multicare Urinary Care with Chicken Dry Cat Food, 4-lb bag
Hill's Prescription Diet
c/d Multicare Urinary Care with Chicken Dry Cat Food, 4-lb bag
$36.99 Chewy Price
($9.25/lb)
Rated 4.7 out of 5 stars
8.2KReviews
Hill's Prescription Diet
k/d Kidney Care with Chicken Dry Cat Food, 4-lb bag
Hill's Prescription Diet
k/d Kidney Care with Chicken Dry Cat Food, 4-lb bag
$41.99 Chewy Price
($10.50/lb)
Rated 4.7 out of 5 stars
3.5KReviews
Hill's Prescription Diet
c/d Multicare Urinary Care Ocean Fish Dry Cat Food, 8.5-lb bag
Hill's Prescription Diet
c/d Multicare Urinary Care Ocean Fish Dry Cat Food, 8.5-lb bag
$67.99 Chewy Price
($8.00/lb)
Rated 4.7 out of 5 stars
3.5KReviews
Hill's Prescription Diet
Gastrointestinal Biome Stress Digestive/Fiber Care with Chicken Dry Cat Foo...
Hill's Prescription Diet
Gastrointestinal Biome Stress Digestive/Fiber Care with Chicken Dry Cat Foo...
$37.99 Chewy Price
($9.50/lb)
Rated 4.7 out of 5 stars
2.4KReviews
Hill's Prescription Diet
k/d Kidney Care Early Support with Chicken Dry Cat Food, 4-lb bag
Hill's Prescription Diet
k/d Kidney Care Early Support with Chicken Dry Cat Food, 4-lb bag
$38.99 Chewy Price
($9.75/lb)
Rated 4.4 out of 5 stars
584Reviews
Hill's Prescription Diet
t/d Dental Care Chicken Flavor Dry Cat Food, 8.5-lb bag
Hill's Prescription Diet
t/d Dental Care Chicken Flavor Dry Cat Food, 8.5-lb bag
$67.99 Chewy Price
($8.00/lb)
Rated 4.8 out of 5 stars
1.5KReviews
Hill's Prescription Diet
d/d Skin/Food Sensitivities Venison & Green Pea Dry Cat Food, 3.5-lb bag
Hill's Prescription Diet
d/d Skin/Food Sensitivities Venison & Green Pea Dry Cat Food, 3.5-lb bag
$43.99 Chewy Price
($12.57/lb)
Rated 4.5 out of 5 stars
287Reviews
Hill's Prescription Diet
y/d Thyroid Care Original Flavor Dry Cat Food, 4-lb bag
Hill's Prescription Diet
y/d Thyroid Care Original Flavor Dry Cat Food, 4-lb bag
$43.99 Chewy Price
($11.00/lb)
Rated 4.5 out of 5 stars
1.2KReviews
Hill's Prescription Diet
m/d GlucoSupport Chicken Flavor Dry Cat Food, 4-lb bag
Hill's Prescription Diet
m/d GlucoSupport Chicken Flavor Dry Cat Food, 4-lb bag
$38.99 Chewy Price
($9.75/lb)
Rated 4.7 out of 5 stars
1.1KReviews
Hill's Prescription Diet
k/d Kidney Care with Ocean Fish Dry Cat Food, 4-lb bag
Hill's Prescription Diet
k/d Kidney Care with Ocean Fish Dry Cat Food, 4-lb bag
$41.99 Chewy Price
($10.50/lb)
Rated 4.6 out of 5 stars
2.3KReviews
Hill's Prescription Diet
c/d Multicare Stress Urinary Care with Ocean Fish Dry Cat Food, 8.5-lb bag
Hill's Prescription Diet
c/d Multicare Stress Urinary Care with Ocean Fish Dry Cat Food, 8.5-lb bag
$73.99 Chewy Price
($8.71/lb)
Rated 4.6 out of 5 stars
930Reviews
Lifestage           
Adult
Adult
Adult
Adult
Adult
Adult
Adult
Adult
Adult
Adult
Adult
Adult
Made In           
United States
United States
United States
United States
United States
United States
United States
United States
United States
United States
United States
United States
Food Form           
Dry Food
Dry Food
Dry Food
Dry Food
Dry Food
Dry Food
Dry Food
Dry Food
Dry Food
Dry Food
Dry Food
Dry Food
Ingredients           
Chicken, Corn Gluten Meal, Chicken Fat, Wheat Gluten, Whole Grain Wheat, Cracked Pearled Barley, Egg Product, Hydrolyzed Chicken Liver, Brown Rice,
Chicken, Whole Grain Corn, Corn Gluten Meal, Whole Grain Wheat, Brewers Rice, Chicken Fat, Chicken Meal, Egg Product, Pork Flavor, Soybean Oil, Fish
Chicken, Brown Rice, Corn Protein Meal, Chicken Fat, Brewers Rice, Whole Grain Wheat, Pea Protein, Egg Product, Chicken Liver Flavor, Powdered
Ocean Fish, Cracked Pearled Barley, Whole Grain Oats, Brewers Rice, Corn Protein Meal, Wheat Gluten, Chicken Fat, Chicken Meal, Chicken Liver Flavor,
Chicken, Brewers Rice, Corn Protein Meal, Chicken Fat, Wheat Gluten, Pea Protein, Whole Grain Corn, Chicken Meal, Whole Grain Oats, Ground Pecan
Chicken, Brewers Rice, Whole Grain Wheat, Corn Protein Meal, Chicken Fat, Egg Product, Wheat Gluten, Pea Protein, Brown Rice, Flaxseed, Chicken Liver
Chicken By-Product Meal, Brewers Rice, Corn Gluten Meal, Whole Grain Corn, Powdered Cellulose, Chicken Fat, Chicken Liver Flavor, Lactic Acid, Calcium
Yellow Peas, Pea Protein, Venison, Green Peas, Soybean Oil, Powdered Cellulose, Chicken Liver Flavor, Coconut Oil, Calcium Sulfate, Fish Oil, Lactic
Corn Protein Meal, Whole Grain Corn, Chicken Fat, Powdered Cellulose, Egg Product, Chicken Liver Flavor, L-Lysine, Potassium Citrate, Dicalcium
Chicken By-Product Meal, Corn Protein Meal, Chicken, Chicken Fat, Wheat Gluten, Potato Protein, Powdered Cellulose, Spray Dried Pork Stock, Corn
Brown Rice, Corn Protein Meal, Chicken Fat, Brewers Rice, Whole Grain Corn, Ocean Fish, Chicken, Pea Protein, Whole Grain Wheat, Egg Product, Chicken
Ocean Fish, Cracked Pearled Barley, Whole Grain Oats, Brewers Rice, Corn Protein Meal, Wheat Gluten, Chicken Fat, Chicken Meal, Chicken Liver Flavor,
Flavor           

Frequently bought together

Questions & Answers

3 Customer Questions

How many calories per 8oz cup?

Answer by Chewy • May 07, 2023
This recipe contains 581 calories per cup.

What is the carbohydrate content per 1/2 cup?

Answer by Chewy • Jul 08, 2025
This dry food has a carbohydrate content of 26.4% on a dry matter basis. We apologize, the specific nutrient information that you are requesting is not made available to us. However, you may contact Hill's Prescription Diet's Consumer Affairs office, where this information may be available.

What is the sodium content?

Answer by Chewy • Dec 11, 2024
This recipe contains 0.4% sodium on a dry matter basis.
Reviews
Write a Review
4.8
Rated 4.8 out of 5 stars
85 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Digestibility

96% Positive

Ingredient Quality

95% Positive

Nutritional Content

93% Positive

Palatability

92% Positive

39 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 rhiannon on Aug 18, 2025

Happy Cat

My kitty Max has cancer and had a decreased appetite. Was given a free bag from his oncologist office to try and boy oh boy did it work! So happy to find a good

My kitty Max has cancer and had a decreased appetite. Was given a free bag from his oncologist office to try and boy oh boy did it work! So happy to find a good my boy was exited to eat again! Not only this food, but now seems to have an appetite for the other food that goes down for his kitty brothers and sisters. So thank you!

Rated 5 out of 5 stars
By Tonya on Aug 26, 2025

This definitely works to maintain weight!

This very high calorie food does the job to help keep, if not gain extra weight when required! My cat likes the flavor and is doing really well on this diet, all

This very high calorie food does the job to help keep, if not gain extra weight when required! My cat likes the flavor and is doing really well on this diet, all things considered.

Rated 5 out of 5 stars
By Ben on Oct 6, 2025

Keeping weight on

My cat has smooth cell lymphoma and he seems to like this food. It is helping him keep his weight.

My cat has smooth cell lymphoma and he seems to like this food. It is helping him keep his weight.

Rated 4 out of 5 stars
By Maureen on Jun 23, 2025

Hill's Prescription Diet ONC Care Dry Cat Food

See my prior review on Hill's Prescription Diet ONC care dry cat food. In summary, my cat more easily ate MORE of the ONC Care Dry cat food vs the ONC care canned

See my prior review on Hill's Prescription Diet ONC care dry cat food. In summary, my cat more easily ate MORE of the ONC Care Dry cat food vs the ONC care canned or wet cat food. Your cat may be different - I believe ALL the Hill's Prescription cat food are high quality, but are very pricey.

Rated 1 out of 5 stars
By Carolyn on Jun 14, 2025

My cat wouldn’t touch this stuff

Unfortunately, my at hated this food. Would not even try it after sniffing it. I tried multiple times. I donated it to my vet. A lot of money down the drain.

Unfortunately, my at hated this food. Would not even try it after sniffing it. I tried multiple times. I donated it to my vet. A lot of money down the drain.

Rated 5 out of 5 stars
By Taylor on Jan 31, 2025

My cat actually ate it!

My baby girl was diagnosed the day after Christmas with osteosarcoma and the vet recommended this food to help her with calorie intake and all that. I was worried

My baby girl was diagnosed the day after Christmas with osteosarcoma and the vet recommended this food to help her with calorie intake and all that. I was worried at first bc she is very picky but, with the meds helping her get an appetite again she actually ate some of the food, wet and dry!! She went over the rainbow bridge today, and even though I just bought it and only used maybe 2 cups, Chewy refunded me for the bag. So tomorrow it’s going to my local shelter, they said they would love to have it. Thank you Chewy!

Rated 5 out of 5 stars
By Kelli on May 20, 2025

Got my baby to eat!

Miss Priss has cancer and the meds decrease her appetite. Once she was put on the ONC food she finally started getting her appetite back!

Miss Priss has cancer and the meds decrease her appetite. Once she was put on the ONC food she finally started getting her appetite back!

Rated 2 out of 5 stars
By Debbi on Mar 21, 2025

Not really a fan

This worked a little better than the cans, but my kitty was a hard food eater really. During the end days of his life I added water to make it soft & warmed for

This worked a little better than the cans, but my kitty was a hard food eater really. During the end days of his life I added water to make it soft & warmed for him. But still wasn’t a fan of.

Rated 4 out of 5 stars
By michelle on Feb 25, 2025

Backup Food

My cat has fibrosarcoma. He is in palliative care at this point, he has become a picky eater after chemo and he seems to enjoy this food sometimes. I don’t really

My cat has fibrosarcoma. He is in palliative care at this point, he has become a picky eater after chemo and he seems to enjoy this food sometimes. I don’t really know if it helps somehow since I’m not a fan of some of the ingredients.

Rated 5 out of 5 stars
By Phyllis on Feb 11, 2025

My cat is 15 years old and my vet gave us a 2 wk supply of this food

My cat really likes this food and I feel it has helped her health to get better. She has put on a little weight already and the bones on her spine are becoming

My cat really likes this food and I feel it has helped her health to get better. She has put on a little weight already and the bones on her spine are becoming padded again.