Tracey, asking about Vit. B12 may be a good idea. I will talk to my vet about it (btw, I'm getting B12-shots myself, as my system cannot absorb enough of this vitamine from food).

Randi, I need to discuss the diet thing with my vet again. It's complicated. Luna will have to eat both struvite crystal diet AND a low protein diet from now on, and my vet says it would be the best to mix it, but opening two cans at the same time means I can't keep it fresh enough so I'd have to dispose half of the food. What's Fister supposed to eat?

Kirsten