Hill's Prescription Diet ONC Care Dry Dog Food, 6-lb bag

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At a Glance

  • Veterinary Diet
  • Adult
  • All Breeds

$29.39 First Time Autoship Price
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$46.54 Autoship Price
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$48.99 Chewy Price
($8.17 /lb)
In Stock
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About This Item

Details

  • Veterinary diet specially formulated to support dogs 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 pup’s gut bacteria for a healthy GI microbiome balance.
  • Added essential omega-3 fatty acids provide immune system support.

Ingredient Information

Feeding Instructions

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

Frequently bought together

Questions & Answers

1 Customer Questions

What is the carbohydrate percentage?

Answer by Chewy • Dec 05, 2023
This formula contains approximately 34.3% Carbohydrates on a dry matter basis.
Reviews
Write a Review
4.6
Rated 4.6 out of 5 stars
181 Ratings
Terms & Conditions

Customers Mention

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

Digestibility

84% Positive

Ingredients

86% Positive

Nutritional Value

85% Positive

Palatability

82% Positive

69 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 1 out of 5 stars
By Chris on Jan 13, 2026

Autoship

My dog passed away months ago. I though I had canceled and out of the blue a auto ship shows up costing me 100.00. Going to try to get a refund.

My dog passed away months ago. I though I had canceled and out of the blue a auto ship shows up costing me 100.00. Going to try to get a refund.

Rated 5 out of 5 stars
By Sydney on Oct 9, 2025

She's keeping weight on with it

This product is worth the money to me! Seeing my old girl go from a body score of 4-5 to barely a 3 overnight was a traumatic experience. I pretty much knew it had

This product is worth the money to me! Seeing my old girl go from a body score of 4-5 to barely a 3 overnight was a traumatic experience. I pretty much knew it had to be cancer- nothing else ravages your weight and appetite quite like it.. but this food actually sparked her appetite right up! Yes, it's costly. But I don't think my senior would exist today if it wasn't for this delicious smelling, highly digestible, high calorie food.

Rated 5 out of 5 stars
By Paula on Dec 22, 2025

Extra vitamins and nutrition for dogs with cancer

My little 14 yr, old chihuahua/mix that I adopted from animal control last year loves it and it has helped put some weight back on her.

My little 14 yr, old chihuahua/mix that I adopted from animal control last year loves it and it has helped put some weight back on her.

Rated 5 out of 5 stars
By Lupe on Nov 23, 2025

Availability

Shopped numerous stores only too be advised that they did not have it in stock. Very disappointing. Thank you for ensuring product is available for purchase.

Shopped numerous stores only too be advised that they did not have it in stock. Very disappointing. Thank you for ensuring product is available for purchase.

Rated 1 out of 5 stars
By Randall on Oct 9, 2025

The $100 bag of food was repackaged.

I don’t even open it. It was clearly repackaged even though the box was sealed. Why would I feed repackaged food to my dog who is already sick. Very disappointi

I don’t even open it. It was clearly repackaged even though the box was sealed. Why would I feed repackaged food to my dog who is already sick. Very disappointing!

Rated 5 out of 5 stars
By Maris on Sep 11, 2025

Picky Eater

My pup is a really picky eater and dealing with kidney disease and lymphoma has made it a lot worse. Although he doesn’t go for this for every meal the high calorie

My pup is a really picky eater and dealing with kidney disease and lymphoma has made it a lot worse. Although he doesn’t go for this for every meal the high calorie content is amazing when he isn’t up for a lot of food

Rated 5 out of 5 stars
By Debby on Sep 15, 2025

Sloane approved

My dog was not happy with her other kibble. I changed her to this because she has a mass on her liver. So anything to help her and also something that she enjoys

My dog was not happy with her other kibble. I changed her to this because she has a mass on her liver. So anything to help her and also something that she enjoys eating. She loves it.

Rated 5 out of 5 stars
By Betsy on Jul 24, 2025

My dog actually eats it!

My dog has leukemia and has lost a significant amount of weight. I tried his normal food, mixing with eggs, rice, beef etc. just to get him to eat something. I

My dog has leukemia and has lost a significant amount of weight. I tried his normal food, mixing with eggs, rice, beef etc. just to get him to eat something. I tried Hills Prescription diet and he inhales his food and it never sits in his bowl! he has put on 7 pounds since starting this food and with the combination of meds and food has started acting like his old self.

Rated 5 out of 5 stars
By Christie on Sep 13, 2025

Miracle food ?

I don't know if it is a miracle food or not but my dog was only expected to live a couple of months. He liked this food and was happy and very active for over nine

I don't know if it is a miracle food or not but my dog was only expected to live a couple of months. He liked this food and was happy and very active for over nine months.

Rated 5 out of 5 stars
By Caroline on Nov 12, 2025

The quick delivery.

It arrives more quickly than I would have expected.

It arrives more quickly than I would have expected.