That is a true statement...My father was born in 1901 on a farm in the Michigan thumb....He loved to eat chicken feet and pickled pigs feet....You used every part of any animal you slaughtered....
Not sure if I am remembering correctly but I think even the brain was used in tanning hides...
Americans would also be surprised how much that hasn't really changed, it just goes on behind the scenes before our meat gets to the grocery. For instance, chicken feet is still a delicacy in China. (I have eaten it, but don't particularly care for it). A lot of the chicken feet Chinese people eat is sent from the US, where it is wasted here. Same with dark meat. From what I have seen, KFC in China is practically nothing more than their dark meat chicken outlet, because we prefer the light meat.