Hill's Science Diet Adult Oral Care Chicken, Rice & Barley Recipe Dry Dog Food, 4-lb bag

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At a Glance

  • Dental & Breath Care
  • Immune Support
  • Vitamins & Minerals
  • Brain Health
  • Adult
  • All Breeds

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About This Item

Details

  • This kibble includes fiber technology that gently scrubs teeth and reduces plaque and tartar buildup.
  • You’ll love how this food cleans teeth to help freshen breath with every bite.
  • This recipe is made with natural ingredients with added vitamins, minerals, and amino acids.
  • Best of all, this kibble is made in the USA with global ingredients you can trust.
  • This oral care dog food is recommended by veterinarians.

Ingredient Information

Feeding Instructions

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Questions & Answers

15 Customer Questions

Can you add water to this food to soften it up?

Answer by Chewy • Aug 12, 2019
It is not recommended to moisten this food as it features a unique Oral Care kibble with an innovative texture designed to work like a toothbrush as your pet chews.

How big is the kibble?

Answer by Chewy • Apr 08, 2023
This food has a kibble size of 19.5 x 22 x 16.5 millimeters.

Is this food accepted by VOHC?

Answer by Chewy • Jan 15, 2020
This formula of food has been accepted by the VOHC as a dental diet for dogs.

After opening and put in a container how long will it stay good?

Answer by Chewy • Nov 25, 2019
The expiration date will vary from batch to batch as they are constantly being made. As long as the food is being held in an airtight container the food will be good until the printed expiration date.
Reviews
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4.5
Rated 4.5 out of 5 stars
1906 Ratings
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Customers Mention

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

Digestibility

87% Positive

Ingredients

88% Positive

Nutritional Value

87% Positive

Palatability

78% Positive

945 Customer Reviews

Rated 5 out of 5 stars
By Elizabeth on Jan 20, 2026

Solid go to food

My dog doesn't require this food, however, it is a great preventative food. My dog is eight and still has clean, white teeth, no problems. Recommend as a dental

My dog doesn't require this food, however, it is a great preventative food. My dog is eight and still has clean, white teeth, no problems. Recommend as a dental preventative for clean teeth. I don't have to buy "teeth cleaning treats", which are more expensive.

Rated 5 out of 5 stars
By Mary on Jan 3, 2026

Finally!

After many years of trying to firm his stool. Ct scans, fiber powders, my Dr had me try this and within a couple days it worked. Firmed him up making it easier

After many years of trying to firm his stool. Ct scans, fiber powders, my Dr had me try this and within a couple days it worked. Firmed him up making it easier to pick up and easing my pups belly. They have a kibble version that I’ve tried mixing in but I don’t think I could ever replace the cans either this.

Rated 3 out of 5 stars
By Niki on Dec 10, 2025

Kibble is gumball sized

I can't imagine how a tiny dog would eat this. My 15 lb dachshund tried (very hard - he's very food motivated) but has had teeth removed and as a result, simply

I can't imagine how a tiny dog would eat this. My 15 lb dachshund tried (very hard - he's very food motivated) but has had teeth removed and as a result, simply cannot eat this food unless I break it up. I think he ended up swallowing 2 pieces so we'll see how those come out. For reference, he can eat regular sized kibble and Milkbone-like crunchy treats (but not super tough jerky treats) but this kibble is both giant AND very hard. Canceling all following shipments...

Rated 5 out of 5 stars
By Donn on Dec 25, 2025

The dog food reduced her horrible bad breath

We ordered the Science Diet Dog food for bad breath. My Bull Terrier Daisy has the worse bad breath after brushing I have ever experienced!The Science Diet Chicken

We ordered the Science Diet Dog food for bad breath. My Bull Terrier Daisy has the worse bad breath after brushing I have ever experienced!The Science Diet Chicken based dog food reduced her horrible breath, also she seems to prefer the large size of the kibble, it is much larger and she chews more than the small bits, maybe this cleans her teeth.

Rated 1 out of 5 stars
By Kimberly on Dec 1, 2025

Pungent Odor in Hills Science Diet Dental Dry Food

I’ve been disappointed with my recent purchases of the Hills Science Diet Dental dry food. Halfway through the bag, I noticed a pungent, offensive smell that made

I’ve been disappointed with my recent purchases of the Hills Science Diet Dental dry food. Halfway through the bag, I noticed a pungent, offensive smell that made me question its freshness. Unfortunately, this is the second 28.5 lb bag in a row that has turned sour before I could finish it. For a product at this price point, I expect consistent quality and freshness. I hope this issue is addressed, as I’ve trusted this brand in the past and want to continue doing so.

Rated 3 out of 5 stars
By Sarah on Jan 16, 2026

Still testing degree of results

Highly desired by all 4 of my beagles. Thelma and Louise, 10 years old, have considerable tartar build up. Bandit, age 4, and Bobby, age 2, have far less. This

Highly desired by all 4 of my beagles. Thelma and Louise, 10 years old, have considerable tartar build up. Bandit, age 4, and Bobby, age 2, have far less. This food mag help reduce additional tartar build up over time.

Rated 4 out of 5 stars
By T on Jan 17, 2026

Teeth cleaning

Very large kibble, we’re transitioning off this recipe now and using it with another food. My pup still eats it but prefers the smaller kibble of the new food. I

Very large kibble, we’re transitioning off this recipe now and using it with another food. My pup still eats it but prefers the smaller kibble of the new food. I think it’s best to use as a topper, not as a meal.

Rated 5 out of 5 stars
By Sarah on Dec 23, 2025

Helps with bad breath

Since using I've noticed a tremendous improvement on my dogs bad breath where he no longer has any! I was given a sample bag at the vet and incorporated it into

Since using I've noticed a tremendous improvement on my dogs bad breath where he no longer has any! I was given a sample bag at the vet and incorporated it into his regular food and just a handful each day has helped the bad breath go away!

Rated 5 out of 5 stars
By Marian on Dec 27, 2025

Dog loves these

My dentist gave me a sample bag of these when I had my dog have her most recent dental. She really likes them. I think she thinks they’re a treat. I still provide

My dentist gave me a sample bag of these when I had my dog have her most recent dental. She really likes them. I think she thinks they’re a treat. I still provide her regular food, but I supplement it with this food.

Rated 5 out of 5 stars
By Ann on Nov 29, 2025

Love the crunch

Lucy is an AmStaff whom I feed rehydrated freeze-dried patties and sometimes smaller kibble. She will not chew on dental chews or nubby toys. I give her pieces

Lucy is an AmStaff whom I feed rehydrated freeze-dried patties and sometimes smaller kibble. She will not chew on dental chews or nubby toys. I give her pieces of Hill's Oral Care for "Treasure Hunts" and as part of some meals. She always crunches the pieces, so I know her teeth benefit.