One of the foods rated as the "most desired" is cheese , be it Swiss, Manchego, Provolone, Roquefort, Brie, Cheddar, Gruyere, Parmesan or Gorgonzola. Much of its appeal, according to experts, is due to the fact that it contains casomorphin , a substance structurally similar to endorphins, also present in breast milk, and that generates a pleasant feeling of well-being.
Its addictive effect , although powerful, is ten times less than that of its older sister, morphine .
