Maintaining healthy joint cartilage and optimal digestive function are top concerns for maturing large breed dogs (over 5 years of age). A diet with glucosamine hydrochloride and chondroitin sulfate, Vitamin E, Vitamin C and an optimal amino-acid profile will continue to help maintain large breed mature dogs health and vitality. It is important that their diet contain not more than 0.6% of phosphorus for proper renal functioning, and should be fortified with chicory extracts to help maintain optimal digestive function resulting in small, firm stools.
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Royal Canin Maxi Mature 26 for Large Breed Dogs (40-lb bag) 
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