Royal Canin Giant Junior Dry Dog Food

The second growth phase in giant breed dogs (8–18/24 months) is characterised by increasing muscle mass as skeletal growth gradually slows. These young dogs are approaching their adult proportions but are still growing — their nutritional needs are distinctly different from both the first puppy phase and adulthood.

Royal Canin Giant Junior provides adapted protein levels to support healthy muscle development. A targeted combination of minerals and joint-supporting nutrients protects bones and joints under the increasing loads of a growing giant body. Prebiotics (MOS) and highly digestible proteins maintain consistent digestive health as daily food volume grows.

This formula bridges the gap between the high-growth Giant Puppy phase and Giant Adult maintenance nutrition. From 18/24 months, transition to Royal Canin Giant Adult.

• Strong immune system: Supports the development of the puppy's healthy immune system with the inclusion of a scientifically proven complex, including vitamins E and C.
• 2ND growth stage: muscle development: As your giant breed puppy gains more muscle during the second growth stage, an adapted protein content helps support muscle development from 8 to 18-24 months old.
• Microbiome support: Combination of prebiotics (MOS) & highly digestible proteins to help promote a healthy balance of intestinal microbiota for digestive health.

• Life stage: Junior dogs (8-18/24 months)
• Breed size: Giant breeds (over 45 kg adult weight)
• Food type: Complete dry dog food
• Key benefits: Bone and joint support, muscle development, digestive health
• Product range: Size Health Nutrition

Composition

Dehydrated poultry protein, maize, maize flour, rice, animal fats, wheat gluten*, wheat flour, beet pulp, hydrolysed animal proteins, minerals, soya oil, yeasts products, fish oil, fructo-oligo-saccharides, psyllium husks and seeds, hydrolysed yeast (source of manno-oligo-saccharides and betaglucans) (0.30%), algal oil Schizochytrium sp. (source of DHA), Yucca Schidigera juice, marigold meal, glucosamine from fermentation, hydrolysed cartilage (source of chondroitin)

Additives (per kg)

Vitamin A: 16500 IU, Vitamin D3: 1100 IU, Iron (3b103): 35 mg, Iodine (3b201, 3b202): 3.6 mg, Copper (3b405, 3b406): 11 mg, Manganese (3b502, 3b504): 46 mg, Zinc (3b603, 3b605, 3b606): 129 mg, Selenium (3b801, 3b811, 3b812): 0.06 mg - Technological additives: Clinoptilolite of sedimentary origin: 10 g - Preservatives - Antioxidants.

* L.I.P.: protein selected for its very high digestibility.

Adjust daily portions according to your puppy’s age, expected adult weight, activity level, and body condition. Always ensure fresh drinking water is available.

Recommended Daily Feeding Guide (grams/day)

For giant breed puppies (expected adult weight 60–90 kg)

8–11 Months

60 kg adult weight: ~610–741 g per day
75 kg adult weight: ~770–877 g per day
90 kg adult weight: ~910–1005 g per day

12–18 Months

60 kg adult weight: ~526–571 g per day
75 kg adult weight: ~626–717 g per day
90 kg adult weight: ~720–863 g per day

Feeding Tips

Divide the daily ration into at least two meals.
Reduce portions gradually as growth slows after 12 months.
Monitor body condition closely and adjust to maintain steady, controlled growth.

What is the difference between Giant Puppy and Giant Junior?

Giant Puppy covers the first growth phase from 2–8 months, focused on skeletal development, while Giant Junior covers the second phase from 8–18/24 months, when the emphasis shifts to muscle development and body filling. The nutritional profiles are different to match each phase’s requirements.

When should I switch to Giant Adult?

Switch to Royal Canin Giant Adult from 18 to 24 months, depending on when your giant breed dog reaches full adult size.

• Some breeds, like Great Danes, mature earlier.
• Others, like Newfoundlands or Saint Bernards, may take longer.
• Make the change gradually over 7 days.

Why don't other brands have a Junior phase?

Most brands combine the full puppy-to-adult growth period into one or two formulas, but giant breeds grow for up to 24 months with distinctly different nutritional needs at each stage.

• Royal Canin uses a three-stage approach: Puppy, Junior, Adult.
• This provides more precisely tailored nutrition during prolonged growth.

What sizes are available?

Royal Canin Giant Junior is available in 3.5 kg and 15 kg bags.