Dr. Fung said in the 1950s people ate junk white bread with junk jam.
They were not fat.
Used to be the four food groups, now the food pyramid.
“Dr. Fung said in the 1950s people ate junk white bread with junk jam...They were not fat.”
It was the wheat. When Mr. Borlaug hybridized it (kicking in between 1960 and 1980), yields went up something like 5-fold, ending world hunger...but humans have trouble with that same wheat, we’re not yet adapted to it. Maybe in another 10,000 or so years, we will be.
https://en.wikipedia.org/wiki/Norman_Borlaug