I don't think she is losing too much weight, it's my husband. For her size it says to feed her 3 to 6 medallions a day and she is getting 4 so she's right in the middle of the recommended amount. You can feel her bones but not see them and that's what I've always been told is ideal. Now, I know Maddie Jo has bones but you certainly can't feel hers! I think that's what my husband is used to so now he thinks Moo is getting too thin...she's just not a 'chunky butt' anymore