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Hill's Prescription Diet Canine u/d

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Hill's Prescription Diet Canine u/d is designed to ensure that the minerals in your dog’s diet are balanced, reducing the risk of bladder stone formation. How it works This mix contains...  Read more

Hill's Prescription Diet Canine u/d

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Product details

Hill's Prescription Diet Canine u/d is designed to ensure that the minerals in your dog’s diet are balanced, reducing the risk of bladder stone formation.

How it works

This mix contains very low amounts of potassium, magnesium, and calcium, all of which can crystalise in your dog’s bladder and from stones. As these minerals make up less than 3% of this recipe, the Hill's Prescription Diet Canine u/d can limit crystal formation. The L-carnitine in the food helps to increase your dog’s protein absorption, which can in turn help keep weight gain in check. The range of carefully selected vitamins can also promote kidney function and boost the immune system. Furthermore, antioxidants counter the build-up of free radicals. These molecules can attack and damage healthy cells, which in turn can lead to the formation of cancers and other serious illnesses.

Key benefits

  • balanced mineral composition minimises the formation of bladder stones
  • essential vitamins complement your dog’s immune system < /li>
  • high quality, easy to digest proteins< /li>
  • supports kidney function
  • low levels of sodium
  • enriched with antioxidants for defence from free radicals
  • fortified with L-carnitine for improved protein uptake.

When to use it

Hill's Prescription Diet Canine u/d is potentially effective as a preventative measure, helping to reduce the risk that your dog will develop bladder stones. In addition, this food can also provide your dog with a high protein, small portion diet. If your dog does have bladder stones, then the mix could also help control and manage the problem.

Straining when going to the toilet in the garden on or your walk together could be a symptom of bladder stones. Additional warnings signs could be a reduced appetite, and noticeable changes in usual behaviour. If left untreated, bladder stones are a serious health risk to your dog, causing blockages in their system. Severe cases often require surgery, which can be distressing, and easily avoided, provided the signs are spotted and treated early.

Because veterinary diets are formulated for the nutritional support of pets with specific clinical conditions, we recommend that you only use them under professional advice. For more information on feeding Hill's Prescription Diet Canine u/d to your dog, please consult your veterinary surgeon.

Click here to check your dog's body condition


Dry food


Brewer's rice, maize starch, animal fat, dried whole egg, cellulose, minerals, digest, flaxseed, dried beet pulp, soybean oil, trace elements, L-carnitine, vitamins, taurine and beta carotene. With a natural antioxidant (mixed tocopherols).

Analytical constituents:

Fat 19%, fibre (crude) 2.4%, moisture 7.5%, protein 9.9%.

Nutritional additives (per kg):

Vitamin A 9615 IU,  vitamin D 847 IU, vitamin E 600 mg, beta-carotene 1.5 mg, calcium 0.43%, carbohydrate 57.9%, L-Carnitine 313 mg, magnesium 0.05%, Omega 3- fatty acids 0.56%, Omega 6- fatty acids 2.95%, phosphorus 0.18%, potassium 0.58%, sodium 0.23%, sulphur 0.17%, taurine 977 mg.

Wet food


Maize starch, dried egg, animal fat, pork liver, various sugars, rice, minerals, cellulose, flaxseed, trace elements and vitamins.

Analytical constituents:

Fat 7.7%, fibre (crude) 0.5%, moisture 70.9%, protein 3.9%.

Nutritional additives (per kg):

Vitamin A 6987 IU,  vitamin D 558 IU, vitamin E 138.5 mg, beta-carotene 1.2 mg, calcium 0.15%, carbohydrate 16.2%, L-Carnitine 99 mg, magnesium 0.04%, Omega 3- fatty acids 1.42%, Omega 6- fatty acids 0.14%, phosphorus 0.09%, potassium 0.16%, sodium 0.09%, sulphur 1.56%, taurine 350 mg.

Feeding Guide

Recommended quantity/day:


Dog`s Weight (kg) Dry food (grams) Cans 370g
2.5 45 - 65 1/3 - 1/2
5 80 -110 2/3 - 3/4
10 130 - 185 1 - 1 1/2
20 225 - 310 1 3/4 - 2 1/2
30 300 - 420 2 1/3 - 3 1/3
40 375 - 520 3 - 4
50 445 - 615 3 1/2 - 4 3/4
60+ 10 per kg 3/4 per 10 kg

Always make sure that your dog has access to plenty of water.

Customer reviews

4.8 out of 5 37  Reviews

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The following reviews are available in English. 

  • Ruby the pug
    Ruby has been on this food few years now I only buy from this company great price and she hasn't had no more problems
    Debbie - January 13, 2020
  • Review
    I’ve used medic animal and canine u/d for years now and the service and delivery has been impeccable and the food has been wonderful for my Dalmatian, no more new urinary stones since he’s been on it ! Perfect
    Anonymous February 10, 2019
  • Hills UD canned food
    My male terrier cross was prescribed this food about eighteen months ago and has been on it since then &;the dried version doesn't agree with him, It seems to do what it says and has has no evidence of the cysteine stones reoccurring. So on the plus side which is the main point it seems to be working and preventing further surgery . On the negative side the recipe appears to have changed slightly since the later months of 2016 same time as the labels changed the quality has been down with poorly mixed contents, spurious colours appearing and the smell which was never good has got worse a warm tin will make you heave if you get too close.
    G L B - December 27, 2016
  • My dog has stayed healthy
    My black lab cross had a massive operation years ago to remove 8 stones from his bladder. This food has kept him stone free. Well worth it.
    Corblo - June 3, 2015
  • It's a winner
    Following surgery to remove stones in his bladder, Finley was prescribed tinned hills UD and allopurinol. He was 1 at the time and had never been very interested in food until I opened the tin. For the first time he was excited at 'dinner time'. I was warned that he may not like it therefore to introduce it slowly but in the event, there was no stopping him. We have not looked back. I have been advised to keep him on the wet food but it would be great if the dry food was available in smaller sizes for the odd treat - Finley weighs 4 kilos so doesn't eat a huge amount and is not allowed anything else but some cottage cheese with his tablet! So Hills- any chance of sample portions of dry Hills UD that I can purchase? Finally as previously advised his urine is tested regularly
    Bubba - February 7, 2015