As long as one egg looks pretty much like another, all the chickens like chicken, and beef beef, the substitution of quantity for quality will go unnoticed by most consumers, but it is becoming increasingly apparent to anyone with an electron microscope or a mass spectrometer that, truly, this is not the same food.
The man who is extremely and dangerously hungry has no other interest but food. Capacities not useful for the satisfying of hunger are pushed into the background. 'But what happens to man's desires when there is plenty of food and his belly in chronically filled? At once, other (and higher) needs emerge and these, rather than the psychological hungers, dominate the organism.
A thousand years ago the Chinese had an entirely codified kitchen while the French were still gnawing on bones. Chopsticks have been around since the fourth century B.C. Forks didn't show up in England until 1611, and even then they weren't meant for eating but just to hold the meat still while you hacked at it with your knife.