Having 9 cats, I decided to give Nutra Thrive to my oldest to start. Call her my "test kitty." While she might not have been the best to start a trial with, she is the one with the most immediate need as she is 20 years old and showing the effects of extreme old age.
I can't say much to appetite as it's always been great. There hasn't been much change there, but it's not diminished, either (always a great thing!).
Shadow's coat looks beautiful. Although she doesn't groom as much as she used to, her coat seems shinier and definitely mats less.
Shadow plays more. I love seeing this as she was always a big player! She's been carrying a toy around calling incessantly. I haven't heard her do that in a few years and I'm loving the return of that sound! There's not been a return of full-on go-for-broke playing, yet, and there may never be. I'm guessing that after 20 years, she has more deterioration than does one of her 12 or 14-year-old counterparts (for example). It may never be reversible at this late point in her life. If it did, I'd be one jazzed kitty-mom!
My main concern has been her arthritis. As she's aged, she moves more slowly, of course. In the past couple of years, her movement seems to be more painful than cautious. I do use a veterinary supplement which has already helped with this some. Having been on Nutra Thrive, she moves a bit more freely and bats the toy mentioned above around more often. If this can reverse, it might take a bit longer to see definitive results than it would with one of her younger housemates. I'm happy with what I'm seeing to date!
I wasn't expecting miracles as, once again, my "test kitty" is in extreme old age and will probably never return to youthful vigor. I am, however, extremely happy with the results I have!
Bottom Line: Yes, I would recommend this to a friend