That should be fine. I used one from the vet that they have at tsc. I think the one I used had vitamins in it. It is only 4.99 a can which was the cheapest place I found.
You’re probably much more experienced than me and you mentioned you’re in the veterinary field so I suggest that the OP would listen to you. That makes sense. I think if it is still having issues down the road then yeah it might help then but it’s probably best to hold off for now like you said...
Hopefully your little kitten feels better. I had a little kitten that I found frozen and malnourished at around 2-3 weeks old. It was abandoned by its mother. It had some of the same symptoms as yours and later had a rectal prolapse. (I know you said yours does not have a rectal prolapse but...