Hill's Prescription Diet K/D Plus Mobility Canine is clinical nutrition that not only supports your dogs's kidney function, but also helps to improve his mobility and increase his cognitive alertness and vitality. In fact, k/d is clinically tested nutrition to improve & lengthen quality of life. It improves kidney & heart function and helps them to stay healthy by stimulating your dogs appetite by utilising enhanced appetite trigger technology & increasing their calorie intake. The vital minerals prevent urinary issues and enhance kidney efficiency by minimizing stress on the kidneys. Containing therapeutic levels of L-carnitine & enriched omega 3 fatty acids, natural sources of glucosamine & chondroitin sulphate with controlled levels of phosphorus, calcium & magnesium you will be on the right track to keep your dog fighting fit and healthy with optimal kidney health. Available in 2 sizes, Prescription diets should only be used with the professional advice of your Veterinarian.