Yep, Nutrical.

And, don't underestimate the power of a cat. My Malfi was supposed to need steroids for life, and we went from 2 pills a day to 1 pill every two weeks.
And, recently, he was supposed to be early CRF, eventually needing fluids.
Now, his bloodwork is good and he is getting enough water, (he's not overly dehydrated for them to order fluids)

Come on Puddy, let's see how high you can bounce back!