The bread that we get from the stores, have a crap ton of fillers chemicals etc.

The bread people ate back then, we’re probably just three ingredients.

Also people back then had to walk everywhere to get where they wanted to go, they got up early and made their own bread fresh, so that meant that they had to use their muscles and body to make that happen. Then the remainder of the day they had to use physical labour to survive.

I think it’s an apples and oranges example