I've spoken to Allen Repashey personally and he told me that none of his cresteds were raised on anything but babyfood and his formula. I've been trying it for almost a year now and everyone seems to be doing very well. None of my animals have dropped in weight and the babies are growing well. I use a mixture of Chicken baby food, Mango, pear, apple and peach baby food, and his formula. So far so good.