Back then, say around the time of WW2, people were active; and country people, especially, worked hard at physical jobs. Not to mention walking from place to place. Just getting enough calories for all that energy was an expensive business. So there was much more emphasis on plain bread’n’butter.
To an extent, this still applies to growing children and teenagers.
Nowadays adults are far less active – and hopefully less poor. Need less carbohydrate and more fruit’n’veg.
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