Hill's Prescription Diet d/d Skin/Food Sensitivities Potato & Duck Recipe Dry Dog Food, 25-lb bag

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About This Item

Details

  • Highly digestible single intact animal protein source and single carbohydrate source to help avoid common food sensitivities in a gluten-free formula
  • High levels of omega-6 and omega-3 fatty acids that help nourish the skin and coat
  • Combination of clinically proven antioxidants helps maintain a healthy immune system and skin barrier function
  • Four different novel protein sources to provide more choices in managing food sensitivity
  • Helps improve digestion and stool quality with visible improvements in the skin and coat

Ingredient Information

Feeding Instructions

FAQ

Learn More About Hill's Prescription Diet From Our Team of Experts

About Hill's Prescription Diet Foods for Skin / Food Sensitivities

Improving Lives Together

Groundbreaking Nutrition for Sensitive Dogs

Dogs with skin and coat conditions or food sensitivities can benefit from Hill's Prescription Diet z/d and d/d foods. Prescription Diet d/d has limited ingredient nutrition and a single intact animal protein. The Prescription Diet z/d food features a highly hydrolyzed protein and a single carbohydrate source to minimize the risk of allergic reactions. Many pet parents discover that simply eating the right food helps eliminate food-related causes of skin irritation and helps avoid reactions to food.

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 has developed foods that are designed to help pets with specific health conditions, providing the right nutrients to support their health. Hill's alliance with veterinarians puts them in a unique position 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.

Find the Right Formula

Talk to your veterinarian about the right formula for your pet.

z/d Skin/Food Sensitivities

Original

Key Nutrients

  • Highly hydrolyzed animal protein
  • Single purified carbohydrate source
  • High levels of vitamin E
  • Natural fiber
  • Essential fatty acid enriched
  • Clinically proven antioxidants

Health Benefits

  • Visible skin and coat improvement in 30 days
  • Promotes healthy skin barrier
  • Helps support a healthy immune system
  • Clinically proven to help normalize stool

d/d Skin/Food Sensitivities

Potato & Venison

Potato & Duck

Potato & Salmon

Key Nutrients

  • Limited ingredient nutrition with single intact animal protein
  • No soy protein or gluten
  • High levels of omega-3 and 6
  • Clinically proven antioxidants

Health Benefits

  • Results you can see in the skin and coat
  • Helps maintain a healthy skin barrier
  • Helps improve digestion and stool quality
  • Supports a healthy immune system

Derm Defense

Chicken

Key Nutrients

  • With proprietary complex of bioactives and phytonutrients
  • High levels of omega-3 and 6 fatty acids
  • Clinically proven antioxidants, including vitamin E
  • No corn, chicken or by-product meal, artificial colors, flavors or preservatives

Health Benefits

  • Helps strengthen skin barrier
  • Drives healthy skin from within
  • Formulated to help soothe and nourish skin and coat
  • Helps skin to recover naturally
  • Holistic long-term solution supporting healthy immune system

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.

Shop Hill's Prescription Diet

Questions & Answers

14 Customer Questions


I see the bag says “New Formula and kibble”. Can you tell what has changed? Is it possible to see the ingredient side of the bag? Thank you

Answer by ChewyFeb 15, 2021
For a complete list of ingredients and the guaranteed analysis, click the “Nutritional Info” tab, next to the “Description” tab, just under the product photos when viewed on a desk top. Click the "Nutritional Info" tab, next to the "Q&A" tab, towards the top bar above the product image when viewed on the app.

Our vet recommended this for our diabetic baby but is this something our other fur baby can enjoy and have as well?

Answer by ChewyDec 01, 2020
Veterinary diets are formulated with the precise ingredients and nutrients needed to address specific medical issues. It is not recommended to feed this to a pet it is not prescribed for.

Does this food have chicken or beef in it.

Answer by ChewyNov 27, 2021
This food does not include chicken or beef. For a complete list of ingredients, click the “Nutritional Info” tab, next to the “Description” tab, just under the product photos.

What kind of potatoes are in this formula?

Answer by ChewyAug 31, 2021
This food contains white potato.

4.7
Rated 4.7 out of 5 stars
479 Ratings

Customers Mention

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

Ease of Use

88% Positive

Effectiveness

92% Positive

Ingredients

88% Positive

Long-Term Benefits

87% Positive

228 Customer Reviews



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

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

Delivery driver drove all over the yard and made ruts

Delivery driver drove all over the yard and made ruts all over the yard. They will be there till spring when the grass grows. The food itself is exactly what he

Delivery driver drove all over the yard and made ruts all over the yard. They will be there till spring when the grass grows. The food itself is exactly what he needs. Please look into the delivery.


Rated 5 out of 5 stars
By Diana on Oct 25, 2025

Not too bad!

So far Ellie Mei is eating this food. She is a really picky eater and if she doesn't like something she won't eat it. I do mix in a little canned food. After a few

So far Ellie Mei is eating this food. She is a really picky eater and if she doesn't like something she won't eat it. I do mix in a little canned food. After a few days on this food her red areas (she's all white) began to turn pink. She is not scratching as much. I think we are headed in the right direction after months of thinking she had only environmental allergies. When she saw her vet recently, she should have cleared up with the supplements, limited ingredient diet and allergy medication she was on since the spring. Her vet decided to put her on this food and see what happens. Fingers crossed she'll keep heading in the right direction and finally get some relief!


Rated 5 out of 5 stars
By Bridgett on Nov 21, 2025

Good quality

The only thing l don't like is the price. Outside of that, the food smells really good and my dogs allergies seem to be non existent on this food. I'll know more

The only thing l don't like is the price. Outside of that, the food smells really good and my dogs allergies seem to be non existent on this food. I'll know more in 4 months, how he's handling it, but we had a lot of luck with the hydrolyzed protein flavor as well so I'm sure either or will be fine for him.


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

A New Flavor for Our Sensitive Pup

Our poor dog was getting tired of her monotonous kibble, so we were pleased that Hills developed some new flavors/recipes for sensitive dogs. She adores the new

Our poor dog was getting tired of her monotonous kibble, so we were pleased that Hills developed some new flavors/recipes for sensitive dogs. She adores the new kibble1


Rated 2 out of 5 stars
By Len on Dec 18, 2025

Need R/D food

All Hill Science r/d food has chicken into. My rescue is obese & allergic to chicken ! Need some recommendations!

All Hill Science r/d food has chicken into. My rescue is obese & allergic to chicken ! Need some recommendations!


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

Quick delivery

Always very quick delivery of my orders. Great customer service as well.

Always very quick delivery of my orders. Great customer service as well.


Rated 3 out of 5 stars
By Patricia on Aug 19, 2025

Hard large size kibble.

The kibble is too large for a Yorkie to chew. It is a large hard size kibble. The only way a small dog can eat it is to chop it up. It is probably a good food

The kibble is too large for a Yorkie to chew. It is a large hard size kibble. The only way a small dog can eat it is to chop it up. It is probably a good food for a large dog but definitely not for small dog. I can hardly break it up with a kitchen hammer.


Rated 5 out of 5 stars
By Tristien on Dec 10, 2025

Order comes quick

Easy website, can change autoship or get earlier with no issues!

Easy website, can change autoship or get earlier with no issues!


Rated 5 out of 5 stars
By Edward on Aug 22, 2025

Service

You guys have the best customer service of any vendor I deal with. 24/7 360 days of live person who answers the phone. Delivery is very prompt. Keep up great w

You guys have the best customer service of any vendor I deal with. 24/7 360 days of live person who answers the phone. Delivery is very prompt. Keep up great work.


Rated 5 out of 5 stars
By Donna on Dec 15, 2025

Expeditiously in delivery

This is the only food my poor allergic pooch can eat

This is the only food my poor allergic pooch can eat