Why are they so angry?  They don't want to be told, or have to admit to themselves that they eat ''multiple servings'', it suggests or assumes they have some semblance of self control and eating several times the suggested portion or serving plays in on the underlying feeling of guilt that really is there. It's the same with their food shaming/portion shaming, they don't want to be reminded of the fact that they consistenty overeat. Often, they also want to uphold this image of themselves as dainty creatures who hardly eat. It was only this week that I heard a massive porker say/''complain'' that she really doesn't have much of an appetite and struggles to eat.