My kittens are going to be a year old in a couple weeks and it is time to transition them away from kitten food (I can't believe they won't be kittens anymore!) I avoided making a decision for awhile what to feed them and finally decided to keep them on Nutro Natural Choice because they seem to do well on that kitten food. However, now I see that there are more decisions to be made...whether to feed them indoor or regular food (what could be the difference??) and then what flavor. I think I read here before that feeding too much fish to cats can be a UTI risk - does this apply to fish-flavored dry food? (my cats haven't had uti's, but I would not want to do anything to put them at a greater risk of getting them)