That's interesting MM, I have to say I dont really free feed mine, used to, but have had 2 long term overweight fosters, so stopped it and never really got back into the habit of it - in fact, I have cut down on their dry a lot, they are only allowed it once a day. Can't say if I noticed any difference or not in them eating their normal meals. Tiger is fussy at the moment, but she is poorly, so I am giving into her.