Once people ate to survive, then they learned to eat to enjoy.  Now, too many of us eat to eat, to consume, which leads to 3 terrible things: gluttony, radical inequality, and the depletion of Planet Earth. Kevin D. Walker, author of The Grand Food Bargain on how things came to the pint that people choose their foods more for convenience and price than quality. The more you choose the first two, Walker warns, the worse your health.