I use the Purina One for Bei-jing, she has been on it ever since she was a kitten, she is on the one for seniors and sensitive stomach, she does great on it, she rarely has to go to the vet unless it is for her normal shots.

The vet has always said it is a highger quality food and if it is working not to change her off of it, she has never had a u.t.i or anything that they might get from some foods.