A friend of mine is a fellow animal lover and works in the pet industry. She swears by certain brands to feed kitties, however most of them are expensive and only sold in pet stores. Are there any good foods that can be bought in a grocery store? She claims the ones carried in the grocery store are bad and a holistic foods are the way to go. Any input? I want the best for my baby, however if there is something that is just as good and not as expensive, I wouldn't mind that!