I've been using Nutro for both my cat and my dog for a few years now. It seems like it keeps my dog healthy and it has a very good selection on cat food that is specialized for some problems. My cat has Mega colon and needs foods high in fiber. The perscription food is very expensive so I mix nutro (higher in fiber than any other regular cat food that I found) with his perscription food. I've been doing this for a few years now and it's been doing good for my cat. The company will sometimes let you try their foods and send you a coupon for a free small bag.