Yes.
Better nutrition leads to larger smarter people over all.
George Washington was 6' 2" which was a large man at the time. Now it is unremarkable.
And people in the Americas tended to be taller then people born and raised in Europe.
Some of that was genetics as American tended to have some American Indian in their background but a good deal of it was just that they ate a diet that was higher in calories and nutrients then the people in Europe.
I’m not just talking about weight. I’m talking about total height and bone length and all that. Seems to me that’s changed and I don’t think I’d attribute it to nutrition.
I believe that the Dutch are now the world's tallest people.
Regards,