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Royal Canin Maxi Sterilised

£76.69 GBP
 per 

£3.99 Delivery (Orders up to £59.99)

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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, formulated for large breeds.

Why your dog will benefit

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

Features & specification

  • Complete dry food for sterilised large 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

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  • 5 stars: 14 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
M
Marie
Back to my old weight!

We switched to another brand for no particular reason. After a few weeks, we noticed that our Hovawart had gained weight, which visibly unsettled him. Back to Royal Canin Sterilised, and his weight quickly dropped again. We now have a happy and active dog once more!

P
Pauline Valentin
Excellent quality food.

My GSDxAM BULLDOG is a great fan of this food. My vet said it's one of the best so I thought we'd give it a go. This food is really good quality and PetsZo is excellent for price.Szeb has maintained his weight after being neutered, he's happy, healthy and his tum is fine, if you are squeamish look away now..his poops are solid and regular so no prob with his glands!! If he's happy so am I.

P
Petra Meyer
Very well tolerated

Our Bernese Mountain Dog has mild stomach problems, and this food is just perfect for her – we wouldn’t buy anything else anymore. Fit and healthy, just as it should be.

O
Olivia
Excellent product

Usually my dog isn't the biggest fan of this kind of food, but he really loves this brand, and he totally devours the Sterilised version

E
Ella
Excellent

I recently made the transition from normal adult Royal Canin to this. Normally my dog doesn't like this type of dog food but this brand seems to be a winner. He almost swallows it whole!

O
Olivia
Maintains a steady weight

I would highly recommend this for anyone with a sterilised dog over 30kgs with a tendency to gain weight.

S
Sophia
Perfect

My lab x border collie cross breed has put on weight since being sterilised. This food is perfect for her, filling and easy to digest...she is never hungry after her bowl.

S
Stephen Wade
Superb food for GSD

Ok so I research until I'm comfortable that the four legged family member is getting the best for the price. I have tried all the so called top end foods and can say with certainty that this is the only one which gives consistent results in my dog! I would gladly spend the sometimes unbelievable prices for dog food if I thought it was doing any good, but believe me when you pay a small fortune and then have a dog who has the runs after a mere few handfuls of food is not much fun. And the rations on these top end foods leave a lot to be desired. To me Royal canin is for anyone who has a GSD and is struggling with digestion issues etc, overall my dog is a picture of health, shiny coat, lovely temperament and no eye/teeth issues etc, now this in part to getting her from a great and respected breeder, but the food plays a massive role in her wellbeing.\nThe only other food option better would be RAW, and I refuse to feed that for many reasons inc salmonella around the house and grounds! \nRoyal Canin from me is 9/10, it would get 10 but I feel they should just have a little bit more transparency in their meat processing etc but hey can't have it all\n\nOh and btw in my opinion dogs are not wolves and even the German shepherd has adapted and been domesticated to eat other items than meat! \n\nPetsZo do 10/10 from me in terms of service and delivery

D
Darcey
Testing this product

We are trying this food for the following reasons: our puppy picks at the current food we give her (normal brand from a supermarket) and then can be really frantic and tbh mental at times knocking the kids over, it's like she's got ADHD. She is pooing still around 6 times a day!! Plus she is often doing loose poos. This is a pita and I've checked every other possible cause and I can only guess it's the food. She smells within a few hours of being bathed and moults like crazy. Her coat looks ok but it's not shiny. Today is day 1, I was surprised how little she is supposed to eat and just gave her her half portion for tea. Well I have never seen her eat ANYTHING so fast. I will post again in a fortnight to update the situation on all of the above.

T
Theo
The best for my lab

He devours this food, and with his golden coat you can really notice a difference in shine and volume

I
Irina
Great!

Great food for sterilized dogs. It really helped my to my labrador to loose some weight.

M
Mrs m allison
Fussy dogs

My dogs have always messed about with food so often had to add other things to try to get them To eat. This is the first food my dogs have ever been excited about and eat every last bit without persuasion. Being German shepherds they have always had dicky tummys but that is not a problem anymore.\nThey went to vet last week and their weight has hardly changed since they were sterilized.

L
Luisa
TOP

For my male dog (neutered), 2 years old, this is just perfect. He wasn’t tolerating his old food as well anymore, so I ordered this, and for about 5 months now, everything has been GREAT.

c
christine josef
Royal Canin Sterilised Maxi Adult

My dog loves his food