I do not think that if you say you are fat, you should starve or throw yourself up. That is just disgusting, eating nothing is worst than eating more, because your body isn't functioning, If I were them, there is a verb called Exercise, they should do it more often, if they did, their mentality would rise up and they would feel better about themselves and their physical form would change also. I also beleive that people who have this problem, should seek help, not in a bad way, because not many people can handle this on their own, even those who go into depression. They tend to not eat either and when something like that affects the mind, your body is affected also. Everything probes to the mind, if that is somehow disrupted, then the body is disrupted.