Translated…
“If you want to lose weight, in the mornings, have a boiled egg, for lunch, a white flour bun, and for supper, just half a white flour bun.”
“Excuse me, doctor, are these for before or after my meals?”
Uh, that just shows, how once, a belief, in this case, having rice for the meals, had settled into your minds, how hard it would be, to have it, uprooted again.