I have a red nose pitt who is approximately 8 years old. About a year ago Dave tore a muscle in his back left leg and has been on 3 legs most of the time. He also has arthritis. After one month of 3 treats a day i have noticed a much high quality of sleep in dave and also he is able to walk on all four legs much more frequently. Although he does not like the taste of the pumpkin spice too much.