When we adopted our kitty Brady we continued to feed him what the resuce was feeding him. Within the week his litter box smelled horrible and his stomach was upset. Figured we would give him a chance to settle in and thought issues would resolve. No luck. In an effort to help make him feel better I stumbled across Fresh Pet in the grocery store - thought I would give it a try. In less than 2 weeks no more litter box odor and no more stomach trouble. He loves the food and his coat is shiny and soft. Our noses and Brady's tummy want to say thank you!