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Hill's Science Plan Adult 1-5 Light Large Breed with Chicken

£67.59 GBP
 per 

£3.99 Delivery (Orders up to £59.99)

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Certified and trusted products
Size: 14kg
Description

A high-quality dry food crafted specifically for large breed adult dogs. This calorie-reduced recipe is perfect for older or less active dogs that need to maintain a healthy weight.

Why your dog will benefit

  • Calorie-reduced recipe for large breed dogs.
  • Suited to older or less active dogs maintaining healthy weight.

Features & specification

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: 17 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
C
Carol Geary
Happy Dog

This food provides my dog with everything she needs plus helps to keep her weight down

c
chris
Defiantly worth every penny when you divide the daily cost

Our dog thrives on this food it comes slightly moist and not completely dry like a lot of dried dog food. There coats are glossy, and they are it tip top condition they don't turn there noses up at it either its just good top quality dog food would not use anything else.

a
angela
she has really enjoyed it and transferred over seamlessly

We have recently tried Hill's for the first time and it's been like a magic food to get our dog to obey us. That aside, she has really enjoyed it and transferred over seamlessly from a different brand. I love that the food is nutritionally balanced to help keep her fit and well for longer, we have certainly learned over the years that choosing the correct food for your dog can be a minefield.

G
GG
Our dog absolutely really loved this

Our dog absolutely really loved this brand and flavour of food, he isn't usually one to prefer dry food but we couldn't get him to wait for the mix to be poured into his bowl! We had to stop him from biting the package! He ate every last bit and has continued to love it every mealtime. We would definitely recommend trying this brand!

T
Tea
switched over from his regular food easily

We have recently switched over to Hills science Plan for adult dogs. So far we have been using the chicken flavour and our dog Mack loves it! He has switched over from his regular food easily with no issues or stomach upset and thoroughly enjoys polishing off his bowl! We have seen an improvement in only a short time to the shine and condition of his coat so look forward to continuing to use this fab product. Would definitely recommend to others with adult dogs

K
Kirsten
I love that this food is very nutritious, supports his joints and muscles and is easily digestible

Absolutely loved this food for my dog and he seemed to love it. He started to get fussy with his food a few weeks ago and wouldn't eat as much but now he eats it all and really enjoys it. We only tried it for a week but can already tell its a winner and a keeper. I love that this food is very nutritious, supports his joints and muscles and is easily digestible. I would 100% recommend this dog food to anyone looking to change their dogs food.

M
Mum of 2.5
ove the velcro seal on the bag to help keep the food fresh

Our border collie/labrador cross has recently tried Hill's food for the first time and we've been really impressed. Despite having tried several dried foods previously without success we are pleased to see she really likes this one. We swapped her over from her old food to this one without any problems at all. I expected her to have runny poo for a couple of days but we are now 5 days in and she's been absolutely fine. I also love the velcro seal on the bag to help keep the food fresh.

D
Daisy Hollands
The Best Your Pet Can Get

My labrador Milo absolutely loves Hills Science Plan. As an owner, it's very important to me that my pet eats a healthy, nutritious diet and one that he enjoys. A great feature I love is the resealable bag, meaning everything is kept fresh and in tip top condition between feeds. I also like the fact that the range has been developed to include puppies right up to elderly, senior dogs so there is a healthy option available specifically for every age group.

M
Maggie Gilpin
Brilliant product and service every time

Excellent

M
Morgan
Amazing Coat

We have used this since our dog was born, from 'puppy' to 'advanced fitness' and now light. The food is great, keeps him very healthy and an AMAZING COAT!

S
Suzanne Barnes
Perfect for a Labrador

Our chocolate lab has always had Hills Science plan since being a puppy. He is a typical lab always wanting more food and we certainly find this does help calm down his hunger pains. Don't get me wrong he still eats a lot but he definitely isn't as bad on this food. A 12kgs lasts a month & PetsZo is certainly the cheapest place to buy this :-)

M
Mark
Great light food

My dog has been on this food now for about 7 years having had weight problems as a younger dog. it has been so helpful in keeping her weight under control and she loves the food. Would highly recommend this product.

G
GetCarterEBT
Top quality food @ best price available

Our Large EBT has progressed through the range of Hill's Science Plan: from Puppy, to Active to Light.\nHe's had continuity throughout. He enjoys this food dry, moistened with water & mixed with wet canned or fresh meat.\nWe swapped to the light to help keep his weight in check - as he's a little less active - which it has.\nPetsZo keep the price affordable & offer free delivery, often adding a free gift too + I collect loyalty points!

P
Pat Wallace
Greedy Lab

My lab has lost weight since last month on this food. always had difficulties before, nothing else worked. Her vet was very pleased in fact told me to slow down weight loss. Well worth extra cost.

J
James
TOP PRODUCT

My Labrador absolutely loves this food. He has never left a morsel since the day we switched to this product. It has also helped to maintain his weight effectively.

G
GDoble
Great food at an unbeatable price

My lab loves this brand, it doesn't even touch the sides as its gone in seconds!! I buy the light as he has been neutered and labs are prone to weight gain - due to their greedy nature!!! He's been on this for the last 3years, a beautiful shiny coat and overall he's one healthy dog! Would never buy anything else! The bag is resealable perfect for keeping the food fresh! Science hill we love you!!

S
Sweelan
Excellent quality

My briard's been eating this for 2 years now. Helps to keep her weight under control (she puts on weight easily since being spayed even though she's very active). Smells good & the dog loves it. Never had any problem with her digestion. Supposed to be good for their joints too.