Thats the part where the fatlogic differentiatees itaelf from actual logic. According to fatlogic, the obese model will not lose weight by consuming less food. But also according to Fatlogic the anorexic girl lost (too much) weight because she didnt eat enough food.  So the fatlogic conclusion is that fat people dont gain weight by eating more, even though anorexics do, and conversely Anorexics lose their weight by eating less, although this process yields no result, or even causes weight gain on a fat body