Royal Canin Size Health Nutrition Giant Adult Dry Dog Food

From £62.95

FREE DELIVERY on most UK orders over £45
Delivery to most EU Countries from £7.99
FREE Standard Delivery 2 - 3 working days
Exceptions & regional surcharges may apply


ROYAL CANIN Giant Adult is suitable for adult dogs that weight 45kg and over and is specially formulated with the nutritional needs of giant dogs like yours in mind.  Because of your dog’s size, it’s important for it to receive beneficial nutrients that contribute to maintaining healthy bones and joints so it can effectively support its own body weight. That’s why ROYAL CANIN Giant Adult food contains glucosamine and chondroitin to support your dog’s continued muscle, cartilage, and bone health.

Correctly managing your dog’s weight is of vital importance in order to avoid unwanted excess weight gain. As a giant dog breed, your dog is already carrying a significant amount of weight around – therefore in addition to having a highly nutritious diet, your dog needs regular and sufficient exercise to further support the maintenance of a healthy weight.  

ROYAL CANIN Giant Adult food is formulated with a balanced complex of antioxidants such as vitamins A, E, and C which help to neutralise the effects that free radicals that can have on your dog’s cells. Amino acids such as taurine and L-Carnitine are also included in ROYAL CANIN Giant Adult food, they help to support your dog’s circulatory function and cardiac health.


  • BONE & JOINT SUPPORT: Helps support giant breed dogs’ healthy bones and joints, which can be placed under stress by body weight.
  • ANTIOXIDANT COMPLEX: Contains an exclusive complex of antioxidants to help neutralise free radicals.
  • CARDIAC HEALTH: Helps maintain a healthy heart thanks to an adapted taurine content.

Suitable for: For giant dogs. Adult weight from 45 kg. From 18/24 months old.


Fresh drinking water should always be available.

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Big size food for big size dogs karen g on 3 March 2023

This is great for my fussy gulping boys. As the size of each kibble piece is very large, it makes my dogs slow down & actually chew & crunch it at a far slower pace & not get it stuck to their throats. It has a more moist coated feel than feeling bone dry which I think helps too. My boys have delicate tummies, this is a rich food for them, so I mix this amongst their usual sensitive food & this works rather better for my x 2 than an anti gulp bowl while keeping their tummies happy. They love this food & it encourages them to eat. If you have big fussy dogs who gulp their food I'd recommend this as it's worth the expense.

Excellent food Sunali on 8 July 2021

My two Tibetan Mastiffs enjoy this as a supplementary meal to their raw diet.

Experienced purchaser newfi family on 8 December 2018

We have fed all our newfoundlands on Royal Canin Giant for the last 20 years and they have enjoyed it and have been healthy and fit. The large size pieces is ideal and they eat it at a sensible rate. There is never any change in the product it is always the same high quality. The coat has a nice shine and a rich colour. We are delighted with the product.

Louie just loves it !!!!!!! Jenny on 1 December 2017

Our Blue Great Dane Louie is now just over 2 yrs old and loves Royal Canine Giant Adult Food .He has had the same brand since a puppy just changing the sizes as he has grown..Never a problem with the food or portions..Now feed twice a day.The prices and special offers on the RC make this a good buy. When there are v good offers we usually buy two of the 15kg bags. The delivery is so very quick ,driver always so helpful and the online order no problems.I have always used PetPlanet for many years and will continue to do so. Thank you.

Best food for my boy Dantes Mum on 2 October 2017

Excellent food from royal canin. We fed this to our 3 great Danes for years, now our bullmastiff. He loves it, fills him up easily, costs less in the long run than buying cheaper foods. Always gets comments on his size, shiny coat & how healthy he looks. There is no substitute for giving my dog the best & this is the best by far. Always excellent service & price from pet planet. Wouldn't shop anywhere else for any other product. Top marks!!!

Excellent lynneoreilly on 15 June 2017

Royal Canin is by far the best food for my dog. Growth, all round maintenance and the result shows in the dig.

Feeding Guide

Dog Activity    45kg   55kg   65kg   75kg   85kg   100kg
Low Activity   394g   459g   520g   579g   636g   718g
Normal Activity   457g   531g   602g   670g   736g   831g
High Activity   519g   603g   684g   761g   836g   945g


Dehydrated poultry protein, maize, maize flour, animal fats, wheat, rice, hydrolysed animal proteins, maize gluten, beet pulp, vegetable protein isolate*, fish oil, minerals, vegetable fibres, soya oil, yeasts and parts thereof, borage oil, hydrolysed crustaceans (source of glucosamine), marigold extract (source of lutein), hydrolysed cartilage (source of chondroitin). 

Analytical Contents: 

Nutrients  Percentage
Protein 28.0%
Crude oil fats 20.0%
Crude Ash 5.3%
Crude Fibres 1.8%
Moisture 9.5%

Vitamin A: 21500 IU, Vitamin D3: 1000 IU, E1 (Iron): 42 mg, E2 (Iodine): 4.2 mg, E4 (Copper): 13 mg, E5 (Manganese): 55 mg, E6 (Zinc): 133 mg, E8 (Selenium): 0.09 mg - Taurine: 2.0 g - Preservatives - Antioxidants. * L.I.P.: protein selected for its very high digestibility.