I do agree that problem foods are not the same for everyone. However if you talk to people who have difficulty controlling their eating, the same foods and kinds of foods seem to come up pretty regularly . Chocolate is one of them.

As a side note, I get the sense that among people who have difficulty controlling their eating, some tend to have more difficulties with sweet foods like chocolate, cookies, cake, etc. Others seem to have more problems with foods which are fatty but not sweet, like potato chips, hot dogs, bacon, nachos, french fries, lasagna, and yes, pizza. Even so, the tastiness of all of these types of foods seems pretty universal.