Royal Canin - Size Health Nutrition Large Breed Aging 8+ Years Dry Dog Food

TL;DR: Royal Canin Size Health Nutrition Large Breed Aging 8+ is a complete and balanced dry dog food for large-breed senior dogs aged 8 years and older. This chicken-based recipe is formulated to support joint health and healthy ageing in bigger frames, and comes in a 100 lb bag.

This Royal Canin dog food senior formula targets the needs of aging large-breed dogs, with nutrition built around joint support and day-to-day vitality in the later years. The kibble size and shape are designed for comfortable chewing in larger breeds.

As a size-specific senior diet, it sits between broader adult maintenance recipes and other life-stage options, so you can match nutrients to both your dog's age and frame.

Key features

• Complete and balanced nutrition for large-breed dogs aged 8 years and older
• Formulated to support joint health in larger, heavier frames
• Chicken as the primary protein source
• Kibble size and shape suited to large-breed jaws
• 100 lb bag for multi-dog households or long-term feeding

Specifications

Who is it for?

This Royal Canin senior dog food is built for large-breed dogs — think retrievers, shepherds, and similar frames — that have reached 8 years of age or older. If you want a diet matched to both senior age and large size rather than a general adult formula, this is the fit.

It is not intended for puppies, small breeds, or younger adult dogs. For other stages and sizes, households often compare the Royal Canin - Size Health Nutrition Large Breed Adult 5+ Years Dry Dog Food, the Royal Canin - Size Health Nutrition Small Breed Aging 12+ Years Dry Dog Food, and the Royal Canin - Size Health Nutrition Medium Breed Adult Dry Dog Food.

Because this is a chicken-based recipe, it is not a poultry-free option. If your dog needs to avoid chicken, ask our team about alternatives in store or by phone.

How do you feed it?

Feed as a complete daily diet, using the feeding guide on the bag based on your dog's ideal weight and activity level. Keep fresh water available at all times.

Transition gradually over 7 to 10 days when switching from another food, mixing an increasing share of the new kibble into the old. Senior dogs in particular tend to handle a slower changeover more comfortably.

How should a 100 lb bag be stored?

Store the bag sealed in a cool, dry place, away from direct sun and humidity. Keeping the original bag inside an airtight bin preserves kibble texture and aroma, which matters when you are working through 100 lb over several weeks.

If you are comparing Royal Canin senior options across breed sizes, our North York team can walk you through how the large-breed aging recipe differs from the small and medium formats. Choosing the right Royal Canin dog food senior formula usually comes down to your dog's adult weight and age.

Available for same-day pickup at our North York, Toronto storefront, or ships Canada-wide.