It all goes back to when we were tiny babies. "Humans are programmed to have an opioid (opiate-like) response to a protein found in milk (casein) so that infants will continue their desire to consume adequate amounts of their mother's milk. Cheese, which is a concentrated form of milk, also induces this effect. These protein compounds, called casomorphins, combined with the high amount of fat and salt are what is responsible for the popular obsession with cheese. Thus, the more you have, the more you crave—as devised by nature." From 25 Foods That Make You Hungrier https://www.eatthis.com/foods-that-make-you-hungry/