We actually found out from our vet that our weekly feeding of 2 adult mice and 1 baby chick was too much and verging on the territory of early fatty liver disease and suggested one mouse and one chick every two weeks instead and already he's lost his excess weight and has more energy.I would try to introduce some whole prey items into the diet. My Chacoan won't even look at bugs any more so his diet consists of mostly mice fuzzies (80%) with ground turkey, beef liver, fish, and eggs making up about 20% of the diet. The whole prey items will also speed the recovery from MBD. Robert eats 3 fuzzies per meal now! What a porker!