I have been testing Pretty Bird Food on a variety of ferrets from age 2-6.... some perfectly healthy, some not. Most like the food, some love it, a couple hate it. I love, absolutley love the ingrediants. I'm not a dietition, but on first glance, this food is spectacular and is very different from others. I'm currently trying a second formula. So far the only thing I haven't liked is that some of the ferret feces are looser than I like them to be. Can't figure out why. They've been on it for months now, so that's been plenty of time for their systems to adjust to food changes. If it did not make thier stools so loose, I'd make their diet half or more than half of this food I tell you. I'm very impressed, and look forward to hearing other peoples opinions about it. Like the poster, I'm also anxious to hear vets, ferret dieticians and Bob C give an opinion about the ingredients, or their experiences with the food. Wolfy [Posted in FML issue 4363]