I love that story that comes up around here every now and then... The gist of it is an obeast decides to return to human status. So she starts eating right and hiking. She puts the weight she loses into her backpack and goes on hikes. It gets to the point where she has lost so much weight, she can't carry it all in her backpack anymore because it's too heavy. I just think that sends a powerful message. (IIRC she did reach human status eventually.)