to be fair the study (at least the title, cant find the text) says that fitness for fats is useless heath-wise, does nether confirm nor deny HAES per se, so that is beside the point. While fat but fit IS a myth, here the whole fat fitness seems to be useless (ie a fatty that does aerobic is as unhealthy as a fatty the same size that has a sedentary life, while that is obviously not true for humans)