I recently switched my ferrets from Purina Kitten Chow to 2 ferret food brands (I mix them together) is it common for them to loose some weight when switching from cat to ferret food. My one has Insulinoma and I can't tell if he is getting skinny from him being sick (I'm new to Insulinoma) or from the food switch. Anyone of experience or knowledge on the subject? Thanks, Tabatha & The Zoo [Posted in FML issue 5179]