z d prescription diet for dogs

By Isabella Storyclaire

last updated September 16, 2024

Contributions sourced from

z/d Food Sensitivities Dry Dog Food Original Bag

Food sensitivities and intolerance are potentially serious problems that can result in irritated skin, coat and ear conditions or even gastrointestinal upset. Dogs that have adverse food reactions due to a food allergy (typically to a protein in the food) or intolerance benefit from a food designed for food sensitivities. Hill's nutritionists and veterinarians developed Prescription Diet z/d clinical nutrition especially formulated to support your dog's food sensitivities. In fact, z/d is clinically proven nutrition to reduce skin & digestive signs from food intolerances.

Food sensitivities happen because proteins enter the skin and cross the digestive system to the body causing immune system to react. z/d is a specialized food with proteins that are gentle and broken into smaller pieces to help avoid detection by the immune system to help your dog feed better, prebiotics to create a healthy gut microbiome balance and fatty acids to build healthy skin.

z/d is nutrition clinically proven to reduce skin & digestive signs from food intolerances which are the outward signs you see. Rest assured this product is working inside the pet to avoid the core issue which is due to an overactive immune reaction to certain foods. With pre-digested animal proteins, antioxidants, prebiotic Fibre and skin nourishing nutrients.

z/d Low Fat Hydrolyzed Soy Recipe Dry Dog Food

INGREDIENTS:Corn Starch, Hydrolyzed Soy Protein, Powdered Cellulose, Dicalcium Phosphate, Soybean Oil, Hydrolyzed Chicken Flavor, Ground Pecan Shells, Coconut Oil, Lactic Acid, Potassium Chloride, Flaxseed, Glyceryl Monostearate, Dried Beet Pulp, Dried Citrus Pulp, DL-Methionine, Fish Oil, Choline Chloride, Calcium Sulfate, Pressed Cranberries, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Pyridoxine Hydrochloride, Calcium Pantothenate, Riboflavin Supplement, Vitamin A Supplement, Biotin, Vitamin B12 Supplement, Folic Acid, Vitamin D3 Supplement), Calcium Carbonate, Iodized Salt, Taurine, Magnesium Oxide, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), L-Tryptophan, Mixed Tocopherols for freshness, Natural Flavors, L-Carnitine, Beta-Carotene.

Hill's Prescription Diet z/d Dog Food

Please note - for customers who have previously fed this diet prior to the inclusion of ActivBiome+ technology, it is recommended you transition your pet to the upgraded formula over a 7 day period. Please consult your vet for any additional information

Adjust feeding amounts as necessary to maintain optimal weight.

If you are unsure, ask your veterinarian.

For best results & safety practices:

Gradually transition to your pet's new food over a 7 day period.

Exclusively feed the recommended Prescription Diet dry food, canned food & treats.

Keep fresh water available at all times.

Have your veterinarian monitor your pet's condition.

To prevent suffocation, keep the packaging out of the reach of pets and children.

Hills Prescription Diet Z/D Canine Dog Food Review (Dry)

Home Reviews Hills Prescription Diet Z/D Canine Dog Food Review (Dry)

Hills Prescription Diet Z/D Canine Dog Food Review (Dry)

By Mike Sagman

Updated: March 25, 2024

The Hills Prescription Diet Z/D Canine product line includes the two dry dog foods listed below. Each is designed to help with the support of pets with skin or food sensitivities.

Each recipe includes its AAFCO nutrient profile: Growth (puppy), Maintenance (adult), All Life Stages, Supplemental or Unspecified.

Recipe and Label Analysis

Hills Prescription Diet Z/D Canine Original Flavor was selected to represent both products in the line for detailed recipe and nutrient analysis.

Ingredients Analysis

The first ingredient in this dog food is corn starch, a starchy powder extracted from the endosperm found at the heart of a kernel of corn. Corn starch is most likely used here to thicken the broth into a gravy.

Corn starch isnt a true red flag item. Yet weve highlighted here for those wishing to avoid corn-based ingredients.

The next two ingredients are hydrolyzed chicken liver and hydrolyzed chicken, organ and muscle meat that have been chemically broken-down into their component amino acids. Hydrolyzed proteins are considered hypoallergenic.

The fourth ingredient is powdered cellulose, a non-digestible plant fiber usually made from the by-products of vegetable processing. Except for the usual benefits of fiber, powdered cellulose provides no nutritional value to a dog.

The fifth ingredient is soybean oil. Soybean oil is red flagged here only due to its rumored (yet unlikely) link to canine food allergies.

However, since soybean oil is high in omega-6 fatty acids and contains no omega-3s, its considered less nutritious than flaxseed oil or a named animal fat.

The sixth ingredient is calcium carbonate, likely used here as a dietary mineral supplement.

The seventh ingredient is dicalcium phosphate, likely used here as a dietary calcium supplement.

From here, the list goes on to include a number of other items.

But to be realistic, ingredients located this far down the list (other than nutritional supplements) are not likely to affect the overall rating of this Hills product.

With 4 notable exceptions

First, we find no mention of probiotics, friendly bacteria applied to the surface of the kibble after processing to help with digestion.

Next, this recipe contains sodium selenite, a controversial form of the mineral selenium. Sodium selenite appears to be nutritionally inferior to the more natural source of selenium found in selenium yeast.

In addition, we note the use of taurine, an important amino acid associated with the healthy function of heart muscle. Although taurine is not typically considered essential in canines, some dogs have been shown to be deficient in this critical nutrient.

And lastly, the minerals listed here do not appear to be chelated. And that can make them more difficult to absorb. Chelated minerals are usually associated with higher quality dog foods.

Nutrient Analysis

Although this is a prescription product, our review has nothing to do with the accuracy of claims made by the manufacturer as to the products ability to treat or cure a specific health condition.

So, to find out whether or not this dog food is appropriate for your particular pet, you must consult your veterinarian.

With that understanding

Based on its ingredients alone, Hills Prescription Diet Z/D Canine looks like an average dry dog food.

The dashboard displays a dry matter protein reading of 20%, a fat level of 14% and estimated carbohydrates of about 58%.

As a group, the brand features an average protein content of 20% and a mean fat level of 15%. Together, these figures suggest a carbohydrate content of 58% for the overall product line.

And a fat-to-protein ratio of about 73%.

Below-average protein. Near-average fat. And above-average carbs when compared to a typical dry dog food.

Free of any plant-based protein boosters, this looks like the profile of a kibble containing a limited amount of meat.

Hill's Dog Food Recall History

The following automated list (if present) includes all dog food recalls related to Hill's through April 2024.

No recalls noted.

You can view a complete list of all dog food recalls since 2009 here.

Our Rating of Hill's Grain-Inclusive Dog Food

Hills Prescription Diet Z/D Canine is a grain-inclusive dry dog food using a limited amount of hydrolyzed chicken liver as its main source of animal protein.

However, due to its intentional therapeutic design, this dog food is not rated.