i'm sure that many people can do much better such food. but these are the associations i have in spite of myself. i could easily see some parents trying to prepare healthier food with similar results - not because they are anorexic, but because they lack the required skills - so that their children develop similar reactions and become permanent customers at the local mcdonalds' (or other fast food outlet).
i wonder whether the changed quality of wheat products could be another factor. most wheat used nowadays is genetically modified and its nutrient content is not the same - there is more gluten and more substances that could cause obesity when consumed in larger quantities.
i'm not so sure that white bread is even manufactured in the same manner. i'm old enough to remember what bread used to taste like before the soviet union collapsed, and compared to that, what we have now is not "bread" at all. it has no flavor whatsoever and its texture is wrong. (grandfather used to call it a "sponge" and i would agree)