Hunter is only one years old or in other words 15 months he is big like small cow size big he is 23 or 24 inches he is a gsd mix I think the other two breeds in him are lab and anatolian shepherd cause of his color blond body with brown and black muzzle and eyes make up, anyway on to my question based on his age would it be to soon to give him glucosamine supplements? I ask this because of his hips if he plays to much with his sister his back right leg with hurt him not hurt like pain but I have seen him take a turn bad cause of it and he will limp we are taking him to the vet on 22nd but that is for a shot if I have time i will ask the vet that but I don't know since it is one of those get in and get out vet times.