I can say I free feed Juni (and my cats before), but I never give them too much. If she still has something, I wait until she finishes everything, then I give her more. I am not worried she will starve, she always ask if she wants more. When I used to feed her with dry food (I think you all know, I switched to natural food - for me and her), she never ate the amount that was written on the package, I never worried. As I said, if she's hungry, she KNOWS how to ask, yes she does!