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IAMS Advanced Nutrition Grain-Free with Ocean Fish

£27.44 GBP
 per 

£3.99 Delivery (Orders up to £59.99)

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Certified and trusted products
Size: 2.5kg
Description

Grain-free food often just swaps grain for potato. IAMS Advanced Nutrition uses peas and sweet potato instead, with 35% dried chicken and turkey supplying protein — and taurine coming naturally from the chicken rather than being added separately.

Why your cat will love it

  • High animal protein — 35% dried chicken and turkey to help maintain lean muscle
  • Grain-free with peas and sweet potato as alternative carbohydrates
  • Prebiotics (0.7% FOS) support digestion
  • Linseed and fish oil supply essential fatty acids for skin and coat
  • Vitamin E and antioxidants support natural defences

Features & specification

  • Life stage: adult cats from 1 year — complete dry food
  • Natural taurine from the chicken content
  • Grain-free, no fillers

Note that despite the Ocean Fish name, chicken and turkey are the main proteins at 35%, with dried ocean fish at 4%. Not suitable for a cat avoiding poultry.

Ingredients

Dried chicken and turkey (35%, of which 21% chicken — a natural source of taurine), dried sweet potatoes, dried green peas, pork fat, dried ocean fish (4%), fresh chicken (4%), dried beet pulp (2.5%), linseed, chicken sauce, fructo-oligosaccharides (0.7%), minerals, fish oil.

Additives per kg: vitamin A (50,000 IU), vitamin D3 (1,438 IU), vitamin E (124mg), copper (7mg), iodine (0.9mg), manganese (32mg), zinc (80mg).

Feeding guide

Cat's weight Daily serving
2kg 30–40g
3kg 40–55g
4kg 50–65g
5kg 55–75g
6kg 65–85g
7kg 70–95g

Guidelines only — adjust to your cat's individual needs. Always ensure a bowl of clean, fresh drinking water is available.

Frequently asked questions

Why does natural taurine matter?
Taurine is essential for feline heart and eye health, and cats can't produce enough themselves. Getting it from a high chicken content rather than a synthetic addition is a reasonable indicator of the protein quality.

Are peas and sweet potato better than grain?
They're a different carbohydrate source rather than an inherently superior one. They matter if your cat has a diagnosed grain sensitivity; otherwise it's a dietary approach.

How do I switch my cat onto it?
Gradually, over 7–10 days, mixing an increasing proportion into the current food. Cats are more resistant to sudden food changes than 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: 10 (83%)
  • 4 stars: 2 (17%)
  • 3 stars: 0 (0%)
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Cindy Girvin
Absolutely purr-fect!

Upon receiving the AMS Advanced Nutrition Grain-Free with Ocean Fish, I noticed that the bag's design was very nice, and I was pleased to see that it was resealable. I have two cats, and I must admit that I rarely buy fish-flavoured biscuits for them, as they prefer other flavours, such as chicken. I find that some fish-flavoured biscuits don't smell that appealing; however, these were fine. My oldest cat can be fussy when it comes to food; however, she took to this immediately and cleared her b

T
ThomasB
Really good quality food

Firstly I received this product for testing purposes but the review is an honest account of my experience:\n\nMy cats (4 of them!) are fussy eaters and it is really difficult to get them to enjoy some foods - especially one they all agree on, but this went down a treat and I can say I am more than surprised! Each one of them loved it. With it being healthy, a good price and, clearly, good taste is something I cannot complain about one bit! Mixed with their usual wet diet worked perfectly!

I
Ian Holmes
Impressive cat food

My initial impression of this cat food is it's good quality from a good quality brand my cat totally accepted the new food to try upon opening the pack first time, he was intrigued to try it and is very content after feeding times, he finds it tasty and been quite vibrant since having this food,still looks forward to it like when first tried it, good appetite too. I received the product for testing purposes but can highly recommend it with a clear conscience.

L
Lucy
Happy Cat

I think this must smell very nice to my cat! He can be a fussy lad but no hesitation with sticking his little nose right in the bag. I'm happy if he is happy and it seems like a very good quality too.

S
Sbegum
Full nutrition for your cat

My cat is usually a picky eater, but she eats her IAMS Dry Ocean Fish straight away. The nutritional information is good. I tried this and an instant hit thank goodness. Whenever it's breakfast time, my cat seems to be excited when I give this to her and also gives the tails up sign of approval. Since moving on to adult food she seems to like this best and happily crunch and munch this. Great packaging. I received the product for testing purposes. But I can recommend it with a clear conscience.

W
William
My cat loves this

I’ve been using this product for over a week. It only took a couple of days of mixing the old food to transfer my cat onto this. He hasn’t had any upset stomach from it and seems to live eating it. I previously thought he wasn’t a big eater as he would often leave food in his bowl but now he eats nearly all of it. My cat still loves eating it after a week and still emptying his bowl.\n\nI’m happy and confident giving this to my cat as it has no fillers, artificial colours, flavours of GMOs. This g

T
Thomas
Awesome Quality

First impressions the package was brilliant and the seal works well (this doesn't always happen with other brands!). Food looks great! Cats are lapping it up! Normally they get bored after a few days but they are still coming back! Cats have been bouncing around enjoying the sun! I feel like they have really enjoyed this food and they seem to need less of it compared to other brands!

L
Lauren
The cat loved it

The packet was bigger than I expected, upon opening it gave a very strong smell. This actually made my cat come running. Tested with a small amount which was gone in seconds. They have become the everyday biscuits. I received the product for testing purposes. But I can recommend it with a clear conscience.

L
Liesl
Love at first bite!

On receiving the IAMS Advanced Nutrition Grain-free with ocean fish food, we didn't know how he would react to the new food and at first mixed some of it with his current food. He immediately started eating it and loved it. He now removes the old food and only eats the IAMS Advanced Nutrition Grain-free with fish. We received the product for testing purposes. But I can recommend it with a clear conscious. We will definitely be purchasing IAMS Advanced Nutrition Grain-free with fish again.

J
Joanna D
Great grain free cat food

Our cat is very fussy with food,so I was unsure if he’d like this, but to my surprise,he tucked in after only a moment’s hesitation and finished the whole bowl!He’s been on it a little while now and seems much happier,more playful,and has had no tummy issues. The biscuits are easy to digest and don’t have that strong smell some pet foods do. Great value too,with quality ingredients and a resealable 2.5kg bag.I received the product for testing purposes but I can recommend it with clear conscience

M
Minnie
Scoffed down

First impressions of the cat food was the light scent that it gave off considering the flavour variety and a light appearance. Overall was enjoyed by kitty. I received the product for testing purposes. However, I can recommend it with a clear conscience.

H
Harry
Really high quality, great food making my cat happier & healthier

When I first received this product after a very quick delivery time of only a couple of days, I could instantly tell it was high quality, and knew that my cat would love it. Opening the packet, my cat was instantly interested in the food, and came over to try to eat it before I had even served it out! After putting the food in the bowl, I could tell instantly that she really loved it, and ate it really fast, and clearly enjoyed it. Now, my cat clearly has a much greater appetite, as she obviousl