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Royal Canin Medium Sterilised

£76.69 GBP
 per 

£3.99 Delivery (Orders up to £59.99)

In stock!
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Certified and trusted products
Size: 12kg
Description

Provides the ideal nutritional solution for a pet’s specific needs. When dogs are neutered, their metabolism changes and they frequently eat more than they need, even without increased activity.

Why your dog will benefit

  • Addresses metabolism changes after sterilisation.
  • Formulated specifically for medium breed dogs.

Features & specification

  • Complete dry food for sterilised medium breed adult dogs.

Delivered across the UK — free delivery on orders over £59.99.

Care

General Care & Storage
To get the most out of your Petszo delivery, please keep the following in mind:

  • Edibles: Keep food and treats tightly sealed and stored in a cool, dry environment.
  • Fabrics & Beds: Gently wipe clean or wash at 30ºC (always check the individual label first). Do not bleach.
  • Safety First: Regularly check toys and accessories for damage and remove them if broken.
  • Note: Always refer to the specific packaging for exact instructions.

Getting the most out of your Petszo order comes down to storing things properly and checking them regularly. Here's what matters.

Food and treats

Keep dry food tightly sealed in a cool, dry place away from direct sunlight. Resealing the bag or transferring it to an airtight container helps stop the fats going stale, which is the usual reason a dog or cat suddenly goes off a food they previously liked.

Opened wet food should be covered and refrigerated, and used within about 24 hours. Serve it at room temperature rather than straight from the fridge — cold food is noticeably less appealing to most pets and can be harder on sensitive stomachs.

Many treat pouches contain a small oxygen absorber sachet to keep the contents fresh. This isn't edible — remove and discard it before giving your pet the treat.

Beds, blankets and fabric items

Most fabric items can be gently wiped clean or machine washed at 30°C, but always check the individual care label first — padding and covers vary between products. Don't use bleach, as residue can irritate skin and paws.

Removable covers are worth washing more often than you'd think, particularly for pets with skin sensitivities.

Toys and chews

Check toys and accessories regularly for damage, and remove anything that's cracked, split or losing pieces. Small fragments are a genuine choking and blockage risk.

Always supervise your pet with chews and rawhide products, and take away any piece small enough to be swallowed whole. Match the chew size to your pet — a chew intended for a small dog won't last long with a large one, and creates more risk.

Harnesses, collars and leads

Check the fit periodically, especially on growing puppies and kittens. As a rule you should be able to slide two fingers comfortably under any strap — tighter risks rubbing, looser risks your pet backing out of it.

Inspect stitching, buckles and clips for wear, and replace anything showing damage before it fails on a walk.

Litter trays and small pet enclosures

Scoop clumping litter daily and top up as needed; a full change every 1–2 weeks is typical, more often with several cats sharing a tray. Clean the tray itself with hot water and mild detergent rather than strong disinfectants, some of which are toxic to cats.

For small pet enclosures, spot-clean soiled bedding daily and do a full change weekly.

Switching foods

Introduce any new food gradually over roughly 7–10 days, mixing increasing amounts into the current food. Sudden changes are one of the most common causes of digestive upset, and it's easily avoided.

Always check the product packaging. The guidance here is general — individual products carry their own storage, washing and feeding instructions, and those take precedence. If you're unsure about something, or your pet has a specific health condition, speak to your vet.

Questions about a specific product? See our FAQ or email support@petszo.co.uk.

FAQ

Frequently Asked Questions (FAQ)
We’ve compiled answers to the most common questions about shopping at PETSZO. Can’t find your question? Contact us at +44 7782 276061 or email us at support@petszo.co.uk.

1. What are your delivery times?
Orders are typically processed within 1–3 business days and spend 2–4 business days in transit. You can generally expect your order to arrive within 3–7 business days total. Once your order is dispatched, you will receive tracking information to monitor its progress.

2. What if my order is late?
While we strive for prompt delivery, carrier delays can occasionally happen. If your order does not arrive within the expected timeframe, please reach out to us. If a package is confirmed lost or significantly delayed by the courier, we will issue a replacement or a refund to ensure your complete satisfaction.

3. Can I return an item?
Yes. In compliance with UK Consumer Law, we offer a 14-day return period for most unused and unopened items in their original packaging. Please check our Refund & Return Policy for details and hygiene-related exemptions.

4. How can I track my order?
After your order is shipped, we will provide tracking details via email. You can use this information to check the delivery status directly with the carrier.

5. How do I contact customer support?
If you have questions about your order, shipping, or products, reach out to our support team:
Phone: +44 7782 276061
Email: support@petszo.co.uk

Answers to the questions we're asked most often. If yours isn't here, call +44 7782 276061 or email support@petszo.co.uk and we'll help.

Delivery

How long will my order take to arrive?

We aim to dispatch orders within 1–7 business days of you placing them. Delivery time after dispatch depends on the shipping method chosen at checkout. You'll receive tracking details by email once your order is on its way, so you can follow its progress with the carrier.

Do you offer free delivery?

Yes — delivery is free on all UK orders over £59.99. Orders below that threshold are charged at the rate shown at checkout before you pay.

Where do you deliver?

We currently deliver within the United Kingdom only. We don't ship internationally at present. Please note that a small number of items are shipped from outside the UK and may take a little longer to arrive — this is noted on the individual product page where it applies.

What if my order is late?

Carrier delays occasionally happen, particularly around public holidays or in bad weather. If your order hasn't arrived within the expected timeframe, get in touch with your order number and we'll chase it. If a package is confirmed lost or significantly delayed by the courier, we'll send a replacement or issue a refund.

How do I track my order?

Once your order ships, we email you tracking details. Use these to check live delivery status directly with the carrier.

Returns & refunds

Can I return something if I change my mind?

Yes. Under UK consumer law you have 14 days from receiving your order to tell us you'd like to cancel, and a further 14 days to send the items back. Items need to be unused, in their original packaging and in the condition you received them. Return postage for change-of-mind returns is at your cost. Full details are in our Refund & Return Policy.

What if my order arrives damaged or incorrect?

We'll put it right. Under UK law you have up to 30 days to reject a faulty item for a full refund. For transit damage, contact us ideally within 48 hours of delivery with photos of both the item and the packaging. We cover return postage on faulty or incorrect items and will offer a full refund or a replacement.

Are there items I can't return?

For hygiene and safety reasons, opened or unsealed pet food and treats, used grooming products, personalised items and gift cards can't be returned unless they're faulty.

How long do refunds take?

Once we've received and inspected your return, we'll let you know whether it's approved. Approved refunds are processed within 14 days of us receiving the goods, back to your original payment method.

Can I cancel an order before it ships?

Yes — email support@petszo.co.uk with your order number any time before dispatch. If it's already gone out, you can return it under the 14-day change-of-mind period once it arrives.

Products

Do I need a prescription for veterinary diets?

No prescription is legally required in the UK to buy veterinary diet foods. However, these products are formulated for diagnosed conditions, so we strongly recommend speaking to your vet before starting one — and having your pet checked at least every six months while feeding it. If your pet's health worsens, seek veterinary advice straight away.

How should I switch my pet to a new food?

Gradually, over roughly 7–10 days. Mix a small amount of the new food into the current one and increase the proportion each day. Switching abruptly is a common cause of digestive upset.

How do I store pet food once it's open?

Keep dry food in a cool, dry place, ideally resealed or in an airtight container to stop the fats going stale. Opened wet food should go in the fridge and be used within about 24 hours. Always check the individual packaging, as some products have specific requirements.

Contact

How do I get in touch?

Phone: +44 7782 276061
Email: support@petszo.co.uk

Please include your order number when contacting us about an existing order — it speeds things up considerably.

Shipping & Returns

Last updated: 16 August 2026

This policy explains how we process, dispatch and deliver orders, and what to do if something goes wrong.

1. Delivery charges

Delivery is free on all UK orders over £59.99. For orders below that value, the delivery charge is calculated and shown at checkout before you complete your purchase — you'll never be charged an amount you haven't seen first.

2. Order processing and dispatch

We aim to dispatch orders within 1–7 business days of the order being placed. Business days are Monday to Friday, excluding UK public holidays.

Once your order has been processed you'll receive a confirmation email, followed by tracking details where available.

3. Delivery times

Time in transit after dispatch depends on the delivery method selected at checkout and your location. Total time to receive your order is therefore the dispatch window above plus the carrier's transit time.

A small number of products are shipped from outside the UK and take longer to arrive. Where this applies, it is stated clearly on the individual product page.

4. Delivery area

We currently deliver within the United Kingdom only. We do not offer international shipping at present.

Please note that a small number of bulky items cannot be delivered to Northern Ireland. Where this restriction applies, it is noted on the product page.

5. Tracking your order

Once your order ships, we'll email you tracking information where available. You can use this to check the live delivery status directly with the carrier.

6. Delays

Some delays are outside our control — carrier backlogs, severe weather, and public holidays being the most common. If your order hasn't arrived within the expected timeframe, please contact us with your order number and we'll investigate.

If a package is confirmed lost or significantly delayed by the courier, we will send a replacement or issue a refund.

7. Incorrect delivery addresses

Please check your delivery address carefully at checkout. If you spot a mistake, contact us immediately — we can usually correct it before dispatch. Once an order has shipped to an address you provided, we may not be able to recover it.

8. Contact us

For any questions about shipping or the status of an order:

Phone: +44 7782 276061
Email: support@petszo.co.uk

Please include your order number — it makes everything faster.

Petszo is a trading name of UZMA QASIM LTD (company number 16856550). We reserve the right to update this policy; the date at the top of this page reflects the most recent revision.

See also: Refund & Return Policy · FAQ

Add to Cart Select The Options Above
  • 5 stars: 11 (69%)
  • 4 stars: 3 (19%)
  • 3 stars: 1 (6%)
  • 2 stars: 1 (6%)
  • 1 star: 0 (0%)
T
Theo
My bitch loves this

My female dog loves this food. She is a great weight and her coat is beautiful and healthy since starting this food

T
Thomas
Highly recommended

Our male dog has been eating this food for 4 months now. He loves it. We can even use it as a treat in between meals. We serve the food softened and always mixed with a bit of wet food. The recommended portion sizes are very generous. It's better to feed only 2/3 of the suggested/recommended amount (taking into account the treats he gets throughout the day). When softened, the volume triples. So far, he has maintained his weight perfectly.

H
Hannah
Not bad, but no weight reduction for us

My neutered male dog does enjoy eating it, but unfortunately, this food doesn't serve its intended purpose of weight reduction in his case. With the recommended amount, he actually gains weight, and I'd have to drastically cut down the portion size for him to lose weight... I'll try a different food instead!

W
Wagner Nicoleta
Very good dog food!

Royal Canin was recommended to me! It's brilliant!

B
Beery Scholl-Wouda
dog food

For 9 months now, my spayed Siberian Husky (almost 8 years old) has been eating this food! She likes it, and she maintains her "ideal weight." I used to feed her Hills before (it was discontinued).

M
Mrs. H-B
First class product

Moved our Soft Coated Wheaten Terrier onto this after she was neutered and she had no problem with the switch from Royal Canin Medium. Has kept her small weight gain manageable (with lots of added exercise) and, as the breeder assured us, kept the dogs stools firm. Been using the Royal Canin range since puppy junior and wouldn’t use anything else, our dog just glows with health. Highly recommended

S
Sylvia Meade
Excellent results

My two sheltie girls love this food and after the vet saying both had to lose 3kg, after three weeks there has been a nudge in the right direction to the weight coming down. \nSpaying made them gain weight despite the three mile daily walks I given them. My boy sheltie has a high metabolic rate so burns his fat off and can eat normal adult Royal Canin.\nRoyal Canin is a top product.

G
Grace
Good but...

We bought this kibble for our neutered Spitz and in terms of size the kibble is quite good because he chews them, rather than swallowing them. He has a nice coat, and hasn't put on weight, but his stool is a bit runny. We'll finish the 12kg pack and see if the problem persists (if it does, we'llchange brand)

M
Mia
Accepted!

Just changed my dogs food from RC Medium Junior to RC Médium Adult sterilised: she really likes it, whereas she used to turn her nose up at the Junior. The kibble pieces are about three times as big as the Junior, but she's having no problems with eating it.

A
Alfie
Very good product

I was afraid that my lady dog would put on weight after she was neutered but with this food we haven't seen any weight gain, what's more she loves them and never leaves any. Perfect product!

J
Jack
Excellent!

Excellent dry food for my very active (sterilised) Breton spaniel! He loves this stuff, and I occasionally mix in a bit of meat for variety. Good quality at a good price!

E
Emily
very good product

Mon Fauve de Bretagne Basset adores this food. It's healthy and balanced, so my dog is in perfect shape. I would recommend!!

L
Lucy
RC food and treats all in one

So, we’ve had the best results so far with RC Medium Adult Sterilised when it comes to weight reduction for our dog. She even accepts the food as a treat during walks, which wasn’t the case with other types of food. \n,I can only recommend it!

O
Oliver
Would have expected more...

Unfortunately, I have to agree with the previous comment. I also noticed weight gain in my neutered male dog, even though I strictly adhered to the recommended feeding amount. While the food is very well received, I am still a bit disappointed and will switch back to "Medium Light," which I have been very satisfied with for years!

E
Ella
Good feed

I got this food for my Labrador bitch and I have to say she’s lost weight and is very active.

C
Charlie
RC Sterilised

Unfortunately, I’m a bit sad that my dog has been on RC Sterilised for 2 months now and has gained 1.5kg, so she’s going back to her RC Light food. Such a shame.