Canadian Brand. Royal Canin Large Breed Adult Dry Dog Food is precise nutrition specifically made for large dogs 15 months to 5 years old weighing 56 - 100 lb. Tailored to support their active lifestyle, this exclusive formula contains an optimal balance of high-quality proteins & fiber for optimal energy & digestive health. Because large breed dogs put a lot of stress on their bones and joints, key nutrients are included to help keep them playing. Omega-3 fatty acids, EPA, & DHA, help promote your dog's coat & skin health. This exclusive kibble is designed for large jaws, with a palatability sure to please.