<i>No one wants to admit it&#x27;s their fault they got fat, but it always is.</i><p>If that were the case then studies to find out why two people can eat the same thing and do the same amount of exercise yet one of them can end up fatter than the other wouldn&#x27;t be necessary. It seems to be the case that, all external factors being equal, how fat you are can be determined by something outside of your control (genetics, gut microbes, etc). To that end, someone could be fat <i>without</i> it being their fault.