Instead of the current treats you give them (vits(?) and froot loops and cat treats), try a nutritious paste like Ferretvite. It will add nutrition and calories, and I've yet to encounter a ferret that doesn't like it. Jeff In Loving Memory of Neo, Trinity, Morphy, Possum, Pip, Pop, Sabrina, Minnie Mouse, Hunny, Misty, Frodo, Baggins, and Mr. Parker Caring for Luna, Baby Girl, Dozer, Boomer, and Zoomer [Posted in FML 7234]