Thanks @bullmama - I looked over it quickly and realized it does have other things added in like you mentioned previously in a thread. I ordered the nujoint ds just now, since it a double the strength of the nujoint. I will start him on 1 1/2 maybe once it arrives, and start him on the nuvet. I hope he does well on them. I'm trying to be safe rather than sorry, so I'm waiting for his belly to heal up.