The food industry has spent 25 million dollars a day selling kids frosted pop tarts, sugary cereal and candy.
Schools, airports and hospitals are all places where you have to eat what is served. These institutions serve unhealthy food that is filled with fat, sugar and salt.
Not only do bulimics get the dopamine high, they also avoid the inevitable weight gain their high calorie binges would produce if they didn't purge.
They both have 'the X factor,' 'the Wow factor,' that certain je ne sais quoi.