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Hill's Prescription Diet z/d Food Sensitivities Dog Food

Hill's Prescription Diet z/d Food Sensitivities Dog Food
Dry » 3kg Bag
Mini Dry » 1.5kg Bag
Wet » 12 x 370g Cans

Images are for illustration purposes only. Packaging may change from time to time and images on our website may or may not be updated.

  • Dry » 3kg Bag £26.99
  • Dry » 10kg Bag £50.99
  • Limited Stock Mini Dry » 1.5kg Bag £15.49
  • Mini Dry » 6kg Bag £44.99
  • Wet » 12 x 370g Cans £24.99

Selection of 5 products from

£15.49 to £50.99


Hills Z/D available from VioVet

Hill's Prescription Diet Canine z/d is a unique combination feed, developed to aid dogs with numerous food allergies and intolerances, which can often lead to the onset of further health conditions such as digestive difficulties. Allergies and intolerances are typically an adverse response to food proteins, and Hill's Prescription Diet z/d has been specially formulated to counter-act these proteins and lower the risk of allergies arising from beef, wheat and dairy products.

Feeding Guide


Body Weight kg Dry grams
2.5 50 - 70
5 85 - 120
10 145 - 200
20 245 - 340
30 330 - 460
40 410 - 570
50 485 - 670
60 + 9 - 12 per kg

These ranges are a starting point only, because dogs' needs vary. Adjust the feeding amount to maintain the optimal body weight.

A 156g can of z/d ULTRA Allergen-Free Canine canned is equal to 40 grams of z/d Low Allergen Canine dry and a 370g can of z/d ULTRA Allergen-Free Canine canned is equal to 95 grams.


These ranges are a starting point only, because dogs' needs vary. Adjust the feeding amount to maintain optimal body weight

Body Weight kg Cans 370 g
2 1/2 - 3/4
3 2/3 - 3/4
4 3/4 - 1
5 1 - 1 1/4
10 1 1/2 - 2
20 2 1/2 - 3 1/2
30 3 1/2 - 4 3/4
40 4 1/4 - 6
50 5 - 7
60 + 1 per 10 kg

A 370g can is equal to 95 grams of the dry food.

Kibble image

Hill's Prescription Diet z/d key benefits

  • Hypoallergenic - carefully crafted with highly hydrolysed animal protein & single purified carbohydrate source.
  • Nutrition for visible improvement in skin & coat in 30 days.
  • Clinically proven to help improve stool.
  • With great taste your dog will love



Maize starch, chicken liver hydrolysate, cellulose, minerals, soybean oil, animal fat, vitamins, trace elements, taurine and beta-carotene. With a natural antioxidant (mixed tocopherols).


Chicken liver hydrolysate, maize starch, cellulose, soybean oil, minerals, trace elements, vitamins, taurine.

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Mon - Fri: 8:30am - 5:00pm
  • Sat: 9:00am - 1:00pm (Collections only)
  • Email: [email protected]

All prices include VAT where applicable.

Delivery Information

How quickly do you deliver?

Under almost all products on our website is an Estimated dispatch time, check this for a delivery prediction specific to the item you are looking to purchase. These badges are updated live based on the stock levels we have and also those of our suppliers - so are usually very accurate, but cannot be guaranteed. In more general terms, we aim to dispatch all orders within 1 working day of receiving payment (and a prescription if required). If we cannot do so within 3 working days we will contact you by email.

What do you charge for delivery?

For UK delivery, we charge the following:

Order Total Weight Delivery
£0-£28.99 Under 2kg £2.99
2kg+ £4.99
£29-£38.99 Under 2kg Free
2kg+ £4.99
£39+ Under 2kg Free
2kg+ Free

Prices quoted are for delivery to all parts of mainland UK except certain Scottish postcodes (where the price is higher for items sent by courier. Delivery of food abroad (including Channel Islands, N. Ireland and other islands around the UK) is charged at a higher price and free delivery is not available. Temperature controlled products are also not always subject to the standard and/or free delivery options.

For full information on our delivery charges, including prices on heavy deliveries to Scotland and abroad, see our delivery information page.

We can deliver most items to all around the world, but prices do vary. To find the exact cost of shipping your item, and to see all options available, follow these steps:

  1. Put the items you wish to order in your basket
  2. Proceed to checkout and enter your delivery address, including country
  3. Delivery information including price will automatically update to what is available to you

Delivery of aerosols

Due to restrictions aerosols can't be sent by Royal Mail. We appreciate your understanding.

Delivery of temperature controlled items

Some products, such as non-ambient items and frozen food, need to be delivered in insulated packaging to prevent them from getting too warm (or too cold) during transit from us to you. Purchasing any of these items in your order will result in a £1.99 charge being added to the total to cover the high cost of the insulated packaging materials. You only pay the £1.99 once per order, regardless of how many temperature controlled items you purchase in that order.

How do I cancel or return an order?

Please call us as soon as possible if you need to amend or cancel an order on 01582 842096. If your order has been processed for dispatch we will be unable to cancel or amend the order. You will however be able to return your product for a full refund*.

To return an item, you must contact us by phone or email to arrange this BEFORE posting any product back to us. We will explain the process at this stage for you.

*For full details on returns, see our terms and conditions page.

Reviews (136)

Q & A

Below are some recent questions we've received regarding Hill's Prescription Diet z/d Food Sensitivities Dog Food, including answers from our team.

13 September 2019 at 7:05pm

Mini zd and the normal

Joanne George

  • VioVet customer since 2019
  • From: Tyne and Wear, United Kingdom

Are the kibbles exactly the same just the size? Which is better for a french bulldog and can it be mixed with the wet food? Or should you stick to one or the other?
Thank you

  • Brand Manager


Thank you for your question,

The mini z/d is smaller kibble but the formulation is the same across the different sizes. I'd probably give a French Bulldog the mini version unless you know he likes larger kibble - personal preference really :-)

You can use the wet and dry together - the easiest option if your dog is fed twice a day would be to feed dry for one meal, and wet for another. Or you can mix but just take care whichever way you do it to reduce the total daily amount of each appropriately so that your dog received the correct amount of calories per day.

I hope this helps!

22 September 2015 at 2:07pm

Redness of skin

Lisa mayle

My dog has finished her steroids and anti biotic about a week ago. She has been on z/d for nearly three weeks. Her skin has started to go red again and has started to lick her paws again. Does this mean the allergy is not food related X

  • Non-Executive Director

This is suspicious and it might rule out a food allergy, but it is too early to say. Some dogs do need more than 3 weeks to show a full response. Also some dogs will pinch a small amount of food (bread, biscuit etc) and if they happen to have a wheat allergy, or some other constituent of what they ate, they will react again. I would certainly suggest that you give the diet more time, but you are right and it might prove that this is not purely a dietary allergy. It is a bit too early to be sure about that.

2 May 2015 at 7:33am

Allergic to potatoes

bailey bobs

My dog is allergic to potatoes corn wheat and rice has severe skin. Allergies tothese myvet has put him on hills zd he loves it.but notice this has potatoes in.

  • Non-Executive Director

All the proteins in Hills z/d have been treated to make sure that they are not recognised by the immune system. This means that even if potato is bad for your dog (which is unusual but certainly possible) it is OK to give him this particular food. [The proteins are "hydrolysed" which means they are broken down into smaller molecules. This does not affect their nutritional value, but makes them unable to cause an allergic response.]

25 January 2015 at 7:36pm

ZD 156g cans

C Berman

  • VioVet customer since 2012
  • From: London, United Kingdom

Please can you tell me if the 156g tins are permanently discontinued?

  • PHP Developer

Yes, Hills have discontinued the 24 x 156g cans and replaced them with the 12 x 370g cans.