Helping cats and dogs live their healthiest lives.
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Helps support bone and joint health with glucosamine, chondroitin, and EPA & DHA

Promotes cellular health with an exclusive vitality complex of antioxidants

Supports heart health with nutrients, including taurine

With a big heart and playful energy, your gentle giant has it all… shouldn’t their nutrition? Extra-large dogs put a lot of daily stress on their joints due to their sheer size and can benefit from a formula that supports digestive health. These giant breed dogs need a size-specific formula to help them live a long, happy life.

Royal Canin Giant Adult dry dog food is tailored to support your dog’s commanding presence and lifestyle. This giant-breed formula contains glucosamine, chondroitin, and EPA/DHA to help keep bones and joints healthy and strong. An exclusive complex of antioxidants supports cellular health. Heart-healthy nutrients like taurine help keep big hearts healthy. High-quality proteins and a blend of fermentable and non-fermentable fibers help support optimal digestive health. Plus, the extra-large kibble encourages chewing, so big dogs can properly digest their food. Add some variety to their bowl with Royal Canin Adult wet dog food.

Chicken by-product meal, brewers rice, chicken fat, brown rice, corn gluten meal, wheat, natural flavors, dried plain beet pulp, pea fiber, wheat gluten, fish oil, vegetable oil, potassium chloride, calcium carbonate, salt, choline chloride, vitamins [DL-alpha tocopherol acetate (source of vitamin E), L-ascorbyl-2-polyphosphate (source of vitamin C), biotin, D-calcium pantothenate, vitamin A acetate, pyridoxine hydrochloride (vitamin B6), niacin supplement, folic acid, thiamine mononitrate (vitamin B1), vitamin B12 supplement, riboflavin supplement, vitamin D3 supplement], trace minerals [zinc proteinate, manganese proteinate, zinc oxide, ferrous sulfate, manganous oxide, copper sulfate, calcium iodate, sodium selenite, copper proteinate], taurine, glucosamine hydrochloride, GLA safflower oil, marigold extract (Tagetes erecta L.), magnesium oxide, L-carnitine, chondroitin sulfate, rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

This diet contains 3958 kilocalories of metabolizable energy (ME) per kilogram or 427 kilocalories ME per cup on an as fed basis (calculated).

Crude Protein (min)26.0%
Crude Fat (min)18.0%
Crude Fiber (max)3.9%
Moisture (max)10.0%
Taurine* (min)0.14%
Glucosamine* (min)446 mg/kg
Chondroitin sulfate* (min)4 mg/kg.

*Not recognized as an essential nutrient by the AAFCO Dog Food Nutrient Profiles.


Weight Low Activity Medium Activity High Activity
99.2 lb (45 kg) 3 5/8 cups (396 g) 4 1/4 cups (459 g) 4 7/8 cups (521 g)
121.3 lb (55 kg) 4 1/4 cups (461 g) 4 7/8 cups (533 g) 5 5/8 cups (606 g)
132.3 lb (60 kg) 4 1/2 cups (492 g) 5 1/4 cups (569 g) 6 cups (647 g)
143.3 lb (65 kg) 4 7/8 cups (522 g) 5 5/8 cups (604 g) 6 3/8 cups (687 g)
165.3 lb (75 kg) 5 3/8 cups (581 g) 6 1/4 cups (673 g) 7 1/8 cups (765 g)
187.4 lb (85 kg) 5 7/8 cups (638 g) 6 7/8 cups (739 g) 7 3/4 cups (840 g)
220.5 lb (100 kg) 6 5/8 cups (721 g) 7 3/4 cups (835 g) 8 3/4 cups (949 g)


Royal Canin Size Health Nutrition Giant Adult Dry Dog Food

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Customer reviews

03 Jan 2019

Huge bites for huge appetites

My BF was feeding his senior St Bernard something inexpensive that was "natural" and I noticed that he did not eat with much gusto. I ordered a bag of this and 1st- a picture of him was on the bag! 2nd- The kibble are sized for him to be able to grab and actually chew ( a little) and 3rd- He obviously preferred the taste. He was underweight and his muscles had some atrophy. Now his back legs seems to have filled in and his coat is so shiny.
Iowa Girl
03 Nov 2018

Best food for dogs

My giant breed dog has been eating Royal Canin since she was born 3 years ago. She has never had any problems and grew to be a beautiful dog.
31 Oct 2018

31 Oct 2018

big breed owner
31 Oct 2018

Giant breed food

It's great to have dog food specifically for the big breeds. We have a Scottish deerhound and an Irish wolfhound, so we need a nutritional food for them.
07 Oct 2018

Excellent results

My large doberman has been on this food for 30 days now and his coat is so soft and shiny, he plays wother his little sister more every day. He loves the taste and the large kibble size with no woofing it down like the smaller kibble. No digestive issues that he has had with other foods. Love this food and the excellent results.
07 Oct 2018

Great for bones and coat

This has been a good fit for our puppy, she is a strong, healthy girl who loves to play with her friends at the park everyday.
04 Oct 2018

Great product!!

My 4 year old Newfie has been on Royal Canin food since he was a puppy! He loves it!! I love because I know that he is getting the vitamins and nutritients that a giant dog needs.
03 Oct 2018

Perfect for St.Bernards

I bought this for my st.bernard Ellie. She absolutely loves it! The bigger kibble fills her tummy up faster and she isn’t eating as much as smaller kibble. She takes her time chewing each piece and eats every bite!
03 Oct 2018

Excellent food

I have rescued a great dane pup at 2 months only weighing 5.2 kg was just bones...since then been raising him on royal canin and he now weighs a fully 72 kg is in excellent condition ,coat is shining oneoneI healthy boy...I would recommend royal canin its the best so far.