That was only part of it though. We ate pretty much what we wanted. But we also lived in a society where when kids got home from school it was safe to go out and play till supper then back outside till dark. We never held back on eating even junk food & the majority of us were well within weight.
But according to the current unrealistic BMI charts I was also overweight 19 year old skinny as can be when I came out of basic training weighing about 180 pounds.
Yup, run around outside, ride bikes, climb stuff after school.
In grade school had recess twice a day (maybe more).
In middle school and high school had an hour of physical ed every day... worked up enough of a sweat that we had to take showers.
I remember just a few really overweight kids, but their parents were that way also, so there was a hereditary effect.
We didn’t have the high fructose corn syrup, wheat, and dairy in EVERYTHING back then either.