I don't know about these food either as they are not available in Italy where I live. I feed Royal Canin to my 5 cats. I free feed dry and give wet when requested by my masters. The eat all natural wet food called Almo Nature which contains only meat with cooking broth and 1% rice. I have always given wet a couple of times a day for added fluids. My RB cat Mytsi was never a big drinker and my vet suggested wet food to help keep her hydrated. It has worked well for me.