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

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At a Glance

  • Gluten Free
  • Veterinary Diet
  • Chicken-Free
  • Skin & Coat Health
  • Adult
  • All Breeds

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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

Frequently bought together

Questions & Answers

11 Customer Questions

It does have soy in the first line of ingredients , but states it’s soy free

Answer by Chewy • Sep 28, 2018
The Hill's Prescription Diet d/d Canine Skin Support Potato & Salmon Formula is free from soy protein. This product does contain soybean oil which is a source of Omega 6 fatty acids. We use high quality soybean oil. The oil is purified and contains no soy protein of any kind.

My bag doesn't have the urinary shield on it. Does this food also help dissolve the struvite Crystal's?

Answer by Chewy • Apr 24, 2022
This variety does not address struvite or other types of crystals. It is specially formulated to support a dog's food sensitivities.

What is the phosphorus % Sodium %

Answer by Chewy • Feb 03, 2021
This variety contains approximately 0.58% Phosphorous and 0.37% Sodium content on a dry matter basis.

How many cups per pound?

Answer by Chewy • Jul 02, 2025
The 8-pound bag has approximately 35.4 cups per bag. The 17.6-pound bag has approximately 78 cups per bag. The 25-pound bag has approximately 110.7 cups per bag.
Reviews
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4.7
Rated 4.7 out of 5 stars
541 Ratings
Terms & Conditions

Customers Mention

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

Ease of Use

85% Positive

Effectiveness

82% Positive

Ingredients

87% Positive

Long-Term Benefits

87% Positive

242 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 LBCC on Feb 22, 2020

Got my groove back

For many years we had thought our Wire Fox Terrier had digestive issues or possibly pancreatitis. For 4 years she had eaten Purina's HA diet for her allergies and

For many years we had thought our Wire Fox Terrier had digestive issues or possibly pancreatitis. For 4 years she had eaten Purina's HA diet for her allergies and it’s lack of fat content. She has suffered with her allergies for 3 years now, every year getting worse. Swollen feet, runny eyes, and coat issues. Finally taking a chance on seeing if the fat content in D/D might be an issue we tried it. Well not going to lie in taste she was in heaven and as we gradually introduced it in with her other diet she consciously made the decision not to eat the HA. Approx. 3weeks went by her coat is excellent, her anxiety much less, and her feet less irritated. I guess you could say D/D was heavenly sent for our pup and us.

Rated 5 out of 5 stars
By Schmoopy on Apr 8, 2014

Great for dogs with allergies and skin problems

My dog is on the older side (16) and have couple of medical issues including allergies and skin problems. The D/D is great for him. Sometimes when I used to buy

My dog is on the older side (16) and have couple of medical issues including allergies and skin problems. The D/D is great for him. Sometimes when I used to buy him medical food he wouldn't eat it - eat small portions. I wouldn't know what to do since you're not allowed to give him anything else but his medical food. I kept changing it until I found the D/D. He loves the D/D and eats it well! It's great for his fur as well. Other kinds of medical food would cause him to vomit or diarrhea - not the D/D! Other than that, Chewy's service is the best. Always prompt answers, flexible and helpful!

Rated 5 out of 5 stars
By Michele on Sep 18, 2017

d/d Skin/Food Sensitivites, Salmon

My French Bulldog has had many stomach issues and needed to be on a food sensitivities diet. We went through so many different foods, he did not like the taste

My French Bulldog has had many stomach issues and needed to be on a food sensitivities diet. We went through so many different foods, he did not like the taste and wasn't eating which was unusual for him. Salmon was the last flavor we tried and bingo!, he loves it. It's such a relief to get him to eat again without being hand-fed or waiting until he was starving. We still mix in some d/d wet food with the dry but hope to be able to cut back on that too. So happy to have found this food.

Rated 5 out of 5 stars
By Denise on Mar 14, 2025

Energy Feeling Better

I tried eliminating ingredients from other high quality dog food and nothing seemed to work. Transitioned over to this food and a month or so into it my girl is

I tried eliminating ingredients from other high quality dog food and nothing seemed to work. Transitioned over to this food and a month or so into it my girl is happy, running around, playful and not miserable, itchy, and depressed. Hesitant at first but it was the right choice for us!!

Rated 5 out of 5 stars
By BingsMom on Apr 24, 2020

LIFE CHANGER

This food is a miracle worker. After nearly 6 months of trying to figure out what wouldn't upset my cavalier puppy's stomach, this food did it. Most dog foods (even

This food is a miracle worker. After nearly 6 months of trying to figure out what wouldn't upset my cavalier puppy's stomach, this food did it. Most dog foods (even those designed for dogs with sensitive stomachs) contains some kind of rice and chicken. After exhausting our options with conventional foods, specialty foods, and a home cooked meal, we came to this food. Within 25 hours, our dog's stool was perfect (something we had NEVER seen with him), his gas decreased, he stopped itching his ears and face, and he was calmer and happier. I am not sure if he was allergic to chicken or to rice, but I'm not about to find out because we are never going off this food. His coat is exquisite and shiny, his weight is perfect, and strangers often comment on what a stunning dog he is. It was one of the quickest turn arounds I have ever seen in a dog. What makes the difference in this food is the novel protein and carbohydrate choices. Hills SD ensures that there is no cross contamination between their different foods. An 8 lb bag lasts our 17 pound dog a little over a month, and the price is reasonable.

Rated 5 out of 5 stars
By Michelle on Feb 2, 2026

Hill's Prescription Diet

I just wanted to share how much Hill’s Prescription Diet has helped my dog, Millie. Before switching, she struggled with eating consistently and staying stable

I just wanted to share how much Hill’s Prescription Diet has helped my dog, Millie. Before switching, she struggled with eating consistently and staying stable. Since starting Hill’s Prescription Diet, she’s been eating well, maintaining her balance, and overall seems happier and healthier. Mealtimes are no longer a challenge, and I feel confident knowing she’s getting the nutrition she needs.

Rated 5 out of 5 stars
By Abby on May 22, 2021

Only kibble my dog will eat

My dog has suffered from recurring ear infections since he was a puppy. He also often had loose-ish stools. On the recommendation of my vet, I switched him to this

My dog has suffered from recurring ear infections since he was a puppy. He also often had loose-ish stools. On the recommendation of my vet, I switched him to this food. He's been on this food for about a month, and his ears have never looked better. They're no longer bright pink, and I've only had to clean them once or twice since switching him (it used to be almost every day). His stools also look much better. He's also super picky, and while he's not completely obsessed with this food, it's the only kibble I've ever given him that he hasn't refused to eat. Definitely worth the price to have a dog who finally likes his food and doesn't need to go to the vet every couple of months for recurring ear infections.

Rated 5 out of 5 stars
By Hope on Jan 9, 2019

This food is keeping my dog alive and well!

I heard a rumor that Hill's might be discontinuing the Potato/Salmon flavor of their d/d food. I really hope that isn't true - my almost-12-year-old dog with a heart

I heard a rumor that Hill's might be discontinuing the Potato/Salmon flavor of their d/d food. I really hope that isn't true - my almost-12-year-old dog with a heart condition has been thriving on this food since his "heart failure" diagnosis a year and a half ago. We get the canned and the dry versions. He LOVES it and I'm convinced it's helping to save/prolong his life (in conjunction with his medications of course). I hope this flavor continues to be available - I know they make other flavors, but this one is the best for my doggie. Thank you Chewy!

Rated 5 out of 5 stars
By Kate14 on Feb 2, 2017

Very high quality food!

I had to switch my dogs food from Iams Response KO due to Mars buying out Iams and discontinuing the food. I have two large dogs, both with food and skin allergies

I had to switch my dogs food from Iams Response KO due to Mars buying out Iams and discontinuing the food. I have two large dogs, both with food and skin allergies. My Vet Allergist recommended this food as a replacement for the Iams brand. While it is a little pricey, the dogs love it, and their skin and ears are looking fantastic! Another surprising positive effect, is they have been having less frequent and smaller poops! I guess better food equals less waste too. I think if you are looking for a high quality food for your dog with sensitive skin and stomach, this may be an excellent choice for your pet!

Rated 4 out of 5 stars
By Janet2 on Jun 2, 2016

Helps with my dog's IBD

This was prescribed for my dog about nine years ago when he was diagnosed with Inflammatory Bowel Disease. Since starting on this food, he rarely has a flareup and

This was prescribed for my dog about nine years ago when he was diagnosed with Inflammatory Bowel Disease. Since starting on this food, he rarely has a flareup and when he does, it's generally due to other things (like a medication that upsets his stomach). I only give this four stars because if my boy could tolerate it, I'd give him something more appealing, but he likes it and it keeps his stomach from being upset, so that's the most important things.