> People in the 50s weren't slimmer because they had ironclad determination to stay such.
Well, heights increased dramatically for a couple decades so what that meant was that many people in the 1950s were starving. In the 1930s, people died of starvation even in the US.
I don't really think that we want to go back to starving our population just to be thin, thanks.
No one is proposing that, obviously