| Product Change Notice: Hill's Prescription Diet z/d Food Sensitivities Dry Dog Food |
From September 2025 this product will have minor formulation changes due to exciting scientific developments and enhancements from Hill's Pet Nutrition. The improved z/d recipes are now fortified with Hill's breakthrough ActivBiome+ ingredient technology clinically shown to rapidly activate the gut microbiome to support digestive health and well-being. During this time you may receive either variety as the updated products start to arrive. The product details on this page reflect the NEW formula. For any other questions regarding this update or the status of our current stock available please contact the Petdirect Customer Care team. |
Hill's Prescription Diet z/d Hydrolysed Dry Dog Food is clinical nutrition to help reduce skin irritation, scratching and digestive issues from adverse food reactions.
Fortified with ActivBiome+ Digestion blend, it rapidly activates the gut microbiome and supports digestive health. Nutrition shown to firm loose stool in 3 days.
Made in the USA with global ingredients you can trust. Developed by Hill’s nutritionists and veterinarians. Veterinarians can provide additional guidance on how Hill’s Prescription Diet products can be fed long-term to help support overall well-being.
Learn more about Hill's Prescription Diet food.
This is a veterinary diet and should be used with your vet's support and recommendation that it suits the health needs of your pet. Details accurate at time of publication. Please refer to the product packaging for further information
Corn Starch, Hydrolyzed Chicken Liver, Hydrolyzed Chicken, Ground Pecan Shells, Powdered Cellulose, Flaxseed, Dried Beet Pulp, Hydrolyzed Chicken Flavor, Soybean Oil, Dried Citrus Pulp, Dicalcium Phosphate, Lactic Acid, Coconut Oil, Fish Oil, Calcium Carbonate, Pressed Cranberries, Glyceryl Monostearate, DL-Methionine, Potassium Chloride, Iodized Salt, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Calcium Pantothenate, Vitamin A Supplement, Riboflavin Supplement, Biotin, Pyridoxine Hydrochloride, Vitamin B12 Supplement, Folic Acid, Vitamin D3 Supplement), L-Tryptophan, Choline Chloride, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Magnesium Oxide, Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene.
| Crude Protein (min) | 14.5% |
| Crude Fat (min) | 10% |
| Crude Fibre (max) | 6% |
| Moisture (max) | 10% |
| Weight of Dog (lbs / kgs) | Amount per Day (cups & grams) |
|---|---|
| 5 (2.3) | 5/8 (60) |
| 10 (4.5) | 1 (100) |
| 15 (6.8) | 1 & 1/3 (130) |
| 20 (9.1) | 1 & 2/3 (165) |
| 30 (14) | 2 & 1/4 (225) |
| 40 (18) | 2 & 3/4 (270) |
| 50 (23) | 3 & 1/3 (330) |
| 60 (27) | 3 & 3/4 (370) |
| 70 (32) | 4 & 1/4 (420) |
| 80 (36) | 4 & 2/3 (460) |
| 100 (45) | 5 & 1/2 (545) |
| 120 (54) | 6 & 1/3 (625) |
New to this food? Mix increasing amounts of your pet's new food with decreasing amounts of the old food over a 7 day period, or longer.
Keep fresh water available at all times! Your pet's nutritional needs may change as they age. Ask your vet at every checkup.
Storage and Disposal Instructions
Store dry and in closed original packaging.
100% SATISFACTION GUARANTEE
At Hill’s, we’re dedicated to making foods your pet will love. If you’re not satisfied for any reason with a product purchased from one of our authorised sellers, simply return the unused portion to the place of purchase for your money back or a replacement product.
Hill’s Prescription Diet has combined the expertise of more than 220 veterinarians, scientists and pet nutritionists to deliver the best nutrition-based solutions that help you recapture a normal, vibrant life together.
Alongside your veterinarian’s recommendation, the Hill’s Prescription Diet range can help support your pet’s weight, mobility, kidney, digestive, urinary or skin and coat health.
Learn more about Hill's Prescription Diet food.
100% SATISFACTION GUARANTEE
At Hill’s, we’re dedicated to making foods your pet will love. If you’re not satisfied for any reason with a product purchased from one of our authorised sellers, simply return the unused portion to the place of purchase for your money back or a replacement product.
Developed by a team
of PhD nutritionists
and veterinarians.
Nutrition clinically tested for a range of conditions unique to each pet.
Available in both dry & wet for added variety.
Check with your vet before making changes to your pet's diet.
We all want our pets to be healthy, but if your vet identifies specialised nutritional needs for your dog, you can rely on Hill’s Prescription Diet foods to help you care for them with every bite.
Every food is formulated with innovative nutritional science to help your dog get back to living their best life, no matter what condition your dog is facing.
BIOLOGY-BASED
NUTRITION
CLINICALLY TESTED NUTRITIONAL SOLUTIONS TO HELP TRANSFORM YOUR DOG'S LIFE
DENTAL
Clinically proven nutrition to reduce plaque, stain & tartar buildup
JOINT
Clinically proven nutrition to support your dog's ability to run, walk and jump
WEIGHT
Nutrition specially formulated to support healthy weight loss and maintenance
URINARY
Clinical nutrition specifically formulated to support your pet's urinary health
GI
Clinical nutrition to help promote growth of beneficial gut bacteria and improve stool quality and digestive health
We have been feeding Poppy our beagle with this food for quite awhile now, with permission from our vet. When we first got her 2 years ago she had super itchy feet, now they are greatly improved. Tried raw feeding for a little while, but came back to this food as her tummy was a little off on raw. We knew we can count on this food to keep her healthy.
Tried what seemed like everything else for my puppys tummy issues over a year. Finally something that works - wish I'd found it sooner!
Easy to order once I found it was in prescription food. Good communication, promopt delivery. Great service thank you.
Good price with fast delivery. Only just started using this company but seem very reliable so would recommend to my friends
This is the only food that worked for my dog with chronic pancreatitis and reflux. Overnight was stopped after eating z/d. Wish vet had put me onto it earlier
All orders are dispatched from Petdirect’s Auckland and Christchurch warehouses, offering fast, reliable delivery throughout New Zealand.
Free shipping on orders $79.00 and over
Flat $5.90 delivery for smaller orders
This is ideal for urgent pet supply needs within the Auckland and Christchurch regions.
Available in eligible Auckland and Christchurch suburbs only.
See our shipping & delivery page for more information
You have 30 days to return products in original condition if you change your mind. Courier costs apply for change-of-mind returns.
If we made a mistake or your order is faulty or damaged, we’ll make it right — and cover the return shipping.
In-person returns are welcome at our Auckland store or Christchurch warehouse (by appointment).
See our full returns & refunds policy for more detail