From 18 - 24 months, depending upon the Breed, for instance Old English Mastiff
Royal Canin Giant Adult, has been Nutritionally formulated to Suit the needs of the Giant Adult Breed. The food encourages Chewing & Slows your dog's Ingestion Rate, Improves Cardiac Muscle Function, Helps Maintain Joint Health & Helps Neuralise Free Radicals . - Encourages Chewing / Slows Ingestion Rate - by Kibble Size, Shape & Texture - Helps Neutalise Free Radicals - by Reduced Phosphorous Content to Preserve Kidney Function, with added concentrations of Vitamin E & C and Selenium - Optimal Cardiac Muscle Function - by adding a combination of L-Carnitine & Taurine that Stimulate Heart Contraction - Joint Flexcare - helps maintain Joint Health