on v5 i don't think so, cause if you just make the hungry hearts full it means that u give them enough food. but if you still feeding them until they refuse, it means that u overfeed them & that condition give them a chance to be fat.
every food reject count as 1 miss, & if you do that miss 5-6 times u'r tamas will become large family (osumotchi). Thats what happen to my v5 a couple days ago!!! hopes that help!