Eating shit fucks up insulin balance. It is considered a dominant hormone in the sense that its presence and absence create cascades of changes. Eating garbage ensures insulin remains high, this ensures coutnerregulatory hormones that signal satiety and fat burning remain inhibited. Consequence: They gleefully consume filth without ever triggering satiety. This is rarely observed when eating quality proteins and fats, which is why you rarely hear of people binge eating only on meats, but you always hear people binge eating on carbohydrate-dense foods