PRO PLAN Veterinary Diets HA ST/OX Hypoallergenic Dry Cat Food - 3.5kg


Earn 252 Reward Points

£21.99 (£6.28/Kg)

10+ In stock
Get this on Monday 29 November if you choose Express Delivery at checkout
FREE DELIVERY on most UK orders over £39
Delivery to most EU Countries from £7.99
Standard Delivery 2 - 4 working days
Exceptions & regional surcharges may apply


PURINA PRO PLAN VETERINARY DIETS Feline HA St/Ox Hypoallergenic is a complete hypoallergenic veterinary diet for the diagnosis and management of food allergies in cats of all ages, including kittens.

Some cats may suffer from food allergy, which can cause skin discomfort and/or digestive upsets. PURINA PRO PLAN VETERINARY DIETS Feline HA St/Ox Hypoallergenic is a true hypoallergenic diet formulated with protein that has been broken down (hydrolysed) into very tiny components that are too small to cause an allergic reaction, and a purified carbohydrate source. Such hydrolysed diets are recognised as the best type of food to use during an 'elimination diet trial' when trying to diagnose (or rule out) food allergy.

During such a trial it is important that your cat is fed no other food or treats. PURINA PRO PLAN VETERINARY DIETS Feline HA St/Ox Hypoallergenic is also useful for cats with severe bowel disease such as IBD as it is highly digestible.

With St/Ox to help support urinary health in cats which may be susceptible to urinary conditions.

Key Benefits:

  • Single hydrolysed protein broken down into tiny components too small to cause an allergic reaction, 
  • Purified carbohydrates to help avoid allergic reactions
  • A great taste thanks to high quality ingredients and a palatability booster

Contents: 3.5kg bag


Fresh drinking water should always be available.

Login to Post Review


My cat loves it! Wolfie on 23 June 2021

My cat has a sensitive stomach and was frequently ill after eating supermarket cat food brands. We tried this under the recommendation of her vet and havent looked back. My cat loves the food and hasnt been ill, her fur is better and she is far more alert and playful. Recommend this product!

Fantastic Kevin Winter on 17 March 2021

Great product weve been using it for years now. My two cats love it.

Amazing! laura-h-baker on 26 January 2021

Weve been using this food for a year now after being recommended it by the vet. Weve tried various vet recommended foods in the past and natural foods but none were effective at all. 1 of our 2 cats has a very sensitive stomach and has been sick regularly for years and it was getting too much to cope with it. Amazingly both cats took to this food straight away which was amazing in itself as they can be very fussy. I think weve only had 2 sickness episodes in the last year which feels like a miracle after what we were dealing with before. It is also great value through this website compared to others as I did shop around before purchasing. Cant recommend this enough!

Looks like rice crispies Ruthiebabe on 2 December 2020

My vet recommended me to get this for one of my cats who has stomach problems he loves it and seems to be helping him.

amazing cat food Nina Blyth on 28 October 2020

My vet recommended this for my poorly kitty, and after 3 months of tummy problems and skin problems, this hypoallergenic food has not only resolved her problems but she actually likes it...she was a fussy eater at best, but now she really loves her food., the best result I could have hoped for. Thank you

good value Barry White on 7 May 2020

My little rag doll cat has a very sensitive stomach and can only eat HA cat food. She is very happy with this particular dry food. Petplanet provided this at a competitive price and delivered it within an acceptable time frame.

Feeding Guide

Weight of Cat (KG)   Amount of Food per day (G) 
2   35
3   50
4   70
5   85
>5   add 15g/kg

The recommended period of use is 3 to 8 weeks. If signs of intolerance disappear, this feed can be used indefinitely. It is recommended that a veterinarian's opinion be sought before use or before extending the period of use and for kitten feeding guidelines.


Rice Starch*
Hydrolysed Soya Protein**
Soybean Oil
Hydrolysed Digest**
Animal Fat
Fish Oil
* Carbohydrate Source
** Protein Sources


  Analytical Constituents
Protein: 35.5 %
Fat content: 10.0 %
Crude ash: 8.0 %
Crude fibres: 3.0 %
Essential fatty acids: 4.0 %
Vit A: 35 000
Vit D3: 1 100
Vit E: 650
Taurine: 1 500
Ferrous sulphate monohydrate: 290
Calcium iodate anhydrous: 3.7
Cupric sulphate pentahydrate: 58
Manganous sulphate monohydrate: 120
Zinc sulphate monohydrate: 490
Sodium selenite: 0.34


This and similar products can be found in: All Cat Food  |  Cat Digestion & Stomach  |  Cat Food  |  Cat Health  |  Pet Health  |  Pet Health: All  |  Pro Plan Veterinary  |  Purina Pro Plan Veterinary Cat