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Royal Canin Feline Veterinary Diets Urinary S/O Moderate Calorie Cat Food

Royal Canin Feline Veterinary Diets Urinary S/O Moderate Calorie Cat Food
Dry » 1.5kg Bag

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  • Dry » 1.5kg Bag £16.00
  • Dry » 3.5kg Bag £34.00
  • Dry » 7kg Bag £59.50
  • Wet » 48 x 85g Pouches £42.59

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£16.00 to £59.50


Urinary S/O Moderate Calorie is a complete food for adult cats. It has been specifically formulated for cats with Lower Urinary Tract Disease (FLUTD) who are prone to being or are overweight. It has been developed to help to dissolve struvite uroliths and to prevent them from reoccurring. This is due to a low level of magnesium and acidification of the urine. It will also dilute the urine to encourage regular flushing out of the bladder.

Diluting the urine will also decrease the concentration of struvites and calcium oxalates in the bladder. It will also support the bladder with glycosaminoglycans (GAG), which naturally helps to prevent toxins or bacteria from causing inflammation or pain. During diopathic cystitis glycosaminoglycans are reduced. The moderate calorie content will help your cat with weight management whilst still taking in high quality protein and the nutrients she needs.

 Royal Canin veterinary dients should only be given in conjunction with your vets recommendation!

Urinary S/O Moderate Calorie UMC 34--- {}

URINARY S/O MODERATE CALORIE is a complete dietetic feed for cats. Its urine acidifying properties and its low level of magnesium make it suitable for dissolving struvite stones and reducing their recurrence. It is also formulated for the nutritional management of cats with lower urinary tract disease. Its moderate calorie content makes it particularly suitable for cats in which ideal weight is hard to maintain (neutering / overweight / low activity).


  • Idiopathic cystitis
  • Struvite urolithiasis
  • Struvite and calcium oxalate urolithiasis


  • Pregnancy
  • Lactation
  • Growth
  • Chronic renal failure
  • metabolic acidosis
  • Heart failure
  • Hypertension
  • Treatment with urine acidifying drugs


  • Struvite Dissolution - Helps dissolve all types of struvite stones
  • Moderate Calorie - Moderate calorie content to help maintain ideal weight
  • Urine Dilution - Urine dilution makes the urine less liable to form struvite and calcium oxalate stones
  • Low RSS - Helps lower the concentration of ions contributing to crystal formation


Dry composition

Dehydrated poultry meat, rice, wheat gluten*, maize flour, vegetable fibres, maize gluten, minerals, animal fats, hydrolysed animal proteins, fish oil, soya oil, fructo-oligo-saccharides, egg powder, hydrolysed crustaceans (source of glucosamine), marigold extract (source of lutein).

Dry nutritional additives (per kg)

Vitamin A: 22300 IU, Vitamin D3: 500 IU, E1 (Iron): 41 mg, E2 (Iodine): 3.2 mg, E4 (Copper): 6 mg, E5 (Manganese): 54 mg, E6 (Zinc): 177 mg, E8 (Selenium): 0.07 mg - Preservatives - Antioxidants.

*L.I.P.: protein selected for its very high assimilation.

Wet composition

Dehydrated poultry protein, rice, wheat gluten*, maize flour, vegetable fibres, maize gluten, minerals, animal fats, hydrolysed animal proteins, fish oil, soya oil, fructo-oligo-saccharides, egg powder, hydrolysed crustaceans (source of glucosamine), marigold extract (source of lutein).

Nutritional additives (per kg)

Vitamin A: 22300 IU, Vitamin D3: 500 IU, E1 (Iron): 41 mg, E2 (Iodine): 3.2 mg, E4 (Copper): 6 mg, E5 (Manganese): 54 mg, E6 (Zinc): 177 mg, E8 (Selenium): 0.07 mg - Preservatives - Antioxidants.

*L.I.P.: protein selected for its very high assimilation.



Analysis table Amount
Vitamin A (UI/kg) 24000.0
Moisture (%) 5.5
L-carnitine (mg/kg) 200.0
Fibre (%) 7.0
Protein (%) 34.0
Glucosamine chloride (mg/kg) 1785.0
Biotin (mg/kg) 4.26
Nitrogen-free extract (NFE) (%) 33.4
Dietary fibre (%) 13.1
Metabolisable energy (calculated according to NRC85) (kcal/kg) 3294.0
Glucosamine plus chondroitin (mg/kg) 1785.0
Calcium (%) 1.0
Omega 3 (%) 0.52
DL-methionine (%) 1.05
Arachidonic acid (%) 0.06
Vitamin C (mg/kg) 50.0
Omega 6 (%) 2.59
Linoleic acid (%) 2.45
EPA/DHA (%) 0.26
Starch (%) 27.3
Metabolisable energy (measured) (kcal/kg) 3520.0
Phosphorus (%) 0.95
Lutein (mg/kg) 5.0
Fat (%) 11.0
Ash (%) 9.1
Vitamin E (mg/kg) 500.0
Taurine (mg/kg) 0.21
Methionine Cystine (%) 1.62
Other nutrients Amount
L-lysine (%) 1.06
Arginine (%) 1.64
Minerals Amount
Potassium (%) 1.0
Magnesium (%) 0.05
Manganese (mg/kg) 68.0
Zinc (mg/kg) 219.0
Selenium (mg/kg) 0.15
Sodium (%) 1.1
Chloride (%) 1.89
Iodine (mg/kg) 3.2
Iron (mg/kg) 167.0
Copper (mg/kg) 15.0
Vitamins Amount
Vitamin B5 Pantothenic acid (mg/kg) 49.2
Folic acid (mg/kg) 18.4
Vitamin B6 Pyridoxine (mg/kg) 51.3
Vitamin B1 Thiamin (mg/kg) 9.4
Vitamin B12 Cyanocobalamin (mg/kg) 0.1
Vitamin B2 Riboflavin (mg/kg) 33.9
Vitamin D3 (UI/kg) 500.0
Choline (mg/kg) 2000.0
Vitamin B3 Niacin (mg/kg) 107.3


Analysis table Amount
Arachidonic acid (%) 0.05
Ash (%) 1.2
Biotin (UI/kg) 0.05
Calcium (%) 0.19
Fibre (%) 0.8
Dietary fibre (%) 1.4
DL-methionine (%) 0.1
EPA/DHA (%) 0.12
Fat (%) 3.0
L-carnitine (mg/kg) 40.0
Linoleic acid (%) 0.5
Lutein (mg/kg) 3.0
Metabolisable energy (calculated according to NRC85) (kcal/kg) 710.0
Metabolisable energy (measured) (kcal/kg) 755.0
Methionine Cystine (%) 0.11
Moisture (%) 82.0
Nitrogen-free extract (NFE) (%) 5.0
Omega 3 (%) 0.2
Omega 6 (%) 0.6
Phosphorus (%) 0.18
Protein (%) 8.0
Starch (%) 4.4
Taurine (mg/kg) 1200.0
Vitamin A (UI/kg) 20000.0
Vitamin E (mg/kg) 95.0
Other nutrients Amount
Arginine (%) 0.45
L-lysine (%) 0.27
Minerals Amount
Chloride (%) 0.15
Copper (mg/kg) 6.0
Iodine (mg/kg) 0.6
Iron (mg/kg) 30.0
Magnesium (%) 0.016
Manganese (mg/kg) 4.5
Potassium (%) 0.17
Selenium (mg/kg) 0.05
Sodium (%) 0.08
Zinc (mg/kg) 40.0
Vitamins Amount
Choline (mg/kg) 500.0
Folic acid (mg/kg) 0.4
Vitamin B1 Thiamin (mg/kg) 30.0
Vitamin B12 Cyanocobalamin (mg/kg) 0.01
Vitamin B2 Riboflavin (mg/kg) 2.0
Vitamin B3 Niacin (mg/kg) 20.0
Vitamin B5 Pantothenic acid (mg/kg) 3.0
Vitamin B6 Pyridoxine (mg/kg) 1.0
Vitamin D3 (UI/kg) 380.0

Feeding guidelines

The following tables show the recommended feeding amount in grams and pouches per day. Ensure a supply of fresh drinking water is available at all times.


Cat's weight Normal Overweight
2 kg 36 g -
3 kg 48 g -
4 kg 59 g 47 g
5 kg 70 g 56 g
6 kg 79 g 63 g
7 kg 88 g 71 g
8 kg 97 g 78 g
9 kg 106 g 84 g
10 kg 114 g 91 g


Cat Weight 2 kg 3 kg 4 kg 5 kg 6 kg
Lean 185 g 1+6/8 pouch 280 g 2+6/8 pouch 370 g 3+6/8 pouch 465 g 4+6/8 pouch 555 g 5/4/8 pouch
Normal 145 g 1+4/8 pouch 220 g 2+2/8 pouch 290 g 3 pouch 365 g 3+6/8 pouch 435 g 4+2/8 pouch
Overweight - - - - 240 g 2+4/8 pouch 300 g 3 pouch 360 g 3+4/8 pouch

Cat Weight 7 kg 8 kg 9 kg 10 kg
Lean 650 g 6+4/8 pouch 740 g 7+4/8 pouch 835 g 8+2/8 pouch 925 g 9+2/8 pouch
Normal 510 g 5 pouch 585 g 5+6/8 pouch 655 g 6+4/8 pouch 730 g 7+2/8 pouch
Overweight 415 g 4+2/8 pouch 475 g 4+6/8 pouch 535 g 5+2/8 pouch 595 g 6 pouch

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 (30)

Q & A

Below are some recent questions we've received regarding Royal Canin Feline Veterinary Diets Urinary S/O Moderate Calorie Cat Food, including answers from our team.

19 November 2015 at 11:54pm


Dorri-ann Whymark

  • VioVet customer since 2009
  • From: Durham, United Kingdom

I have 4 cats one of whom has bladder 'sludge' (vets description!) Until earlier this year she was fine but unfortunately due to flare-up of a chronic illness I was unable to keep up with ordering Hill's prescription c/d diet food until last month.
I have to feed the diet food as due again to illness I haven't kept on top of my cat's weight. In fact I am guilty of overfeeding (she says shamefacedly) and now have 3 overweight cats and 1 cat with bladder sludge but isn't overweight!
(I also have 1 missing cat, the youngest, Jet, he's been missing for a year despite all our efforts to find him)
The problem is since my vet prescribed Hill's Prescription diet c/d food there have been greater variety of foods to help cats with bladder and/or urinary problems. There is also a greater choice of diet foods to decide on.
My two ginger and white males also have allergy related asthma (which is a Hugh worry) as well as being overweight. Which leaves my son's cat, the youngest female, (Jess - because she's black and white!) who is seriously overweight. So to put these into order I have:
2 large (1 has Maine Coon in him) males with asthma and weight issues,
1 small to medium sized female who is obese and:
1 small female who has bladder sludge.
My actual questions are:
What is the best food to feed them all? and
How can I help them lose weight as quick as possible, especially my son's poor 'little' cat as she seems to have back pain so urgently needs to shed the fat?
I'm sorry if I've rambled on but I would really appreciate your advice.
Thank you so much for your patience in reading my lengthy post/questions.
I remain a loyal customer!

  • Non-Executive Director

Weight loss in cats is an involved topic. essentially you simply need to be less generous and not allow them to eat so much. Fat does not appear from mid air, it is merely an energy store built up from eating excess food. The correct amount of food to eat is always and very simply, the amount of food which results in the correct body weight. Eat more and you get fat, eat less and you get thin. There is no mystery to it. The complication is that cats do not like being kept short of food and most people let them "graze" to their hearts content. If the food is nice, they over-eat. It is more comlicated than that because some foods encourage over-eating whereas others produce a feeling of "fullness" (satiety) sooner. But then habits and learned behaviour and many other things affect it. The principle remains the same though - if you feed less your cats will lose weight. I would be tempted to put all your cats on a high protein, low carbohydrate, wet diet with extra water added to it. This would be a different tack from what your vet has suggested, so it would be best to check with your vet before changing. I would say however that dried diets are very much associated with bladder problems and obesity in cats. Wet diets (especially if you add extra water to them to make the fluid intake high) are better.. This results in producing more dilute urine which often cures bladder problems if you can achieve it.

High moisture, low carbohydrate, high protein diets tend to produce thinner cats without bladder problems. (Prior to the 1970s when dried diets came in, cats were much thinner and did not get the same bladder problems. They were fed on tinned and fresh foods which were less convenient but did have some advantages. I would stay with your current Royal Canin diet but would only use only the pouches or canned varieties. I would also add extra water to make them a bit sloppy. You might find this puts them off their food a bit and they eat less. That could be a perfect result and make them lose a bit of weight. However you need to monitor and adjust things as you go on, which I cannot help with like this. My only other initial comment would be that it is bad for an obese cat to rapidly lose weight. It needs to be gradual and continued. Less food results in weight loss and ideally you measure out the daily allowance to control this, but with a group of cats it is difficult unless you feed them all separately.