I'm having a bit of the same problem. I was successful with introducing the Weight management food until Kitten Chow entered the scene. Now The REFUSE to eat the weigh anagement, but the kittens have been chowing down. They'll eat most anything

So I bought regular Nurto for the boys, and put the Kitten Chow in a plastic container that the boys can't open. Problem is they are always looking at me with big sad hungry eyes. They've been eating Nicki's food - they are starving SOO much - but their food bowl remains full. Allen and Pouncer have put on so much weight since the Kitten Chow entered the house. What to do!?!?