- Dec 2015
The suggestion is that potatoes are 80% water and are rather inadequate for strenuous physical works and activities.In 'the New World' the potato was a staple food, of which around 200 varieties were grown. Perhaps an early super food, when considering the needs of the plant vs its calorific value.
Potatoes were the staple food in nineteenth century Ireland, where around 2 MILLION people ate spuds and nothing else. So, when the potato was hit with a blight, around 1845-1850, the result was a nationwide famine which killed between 1-1.5 million people. With another couple of million migrating to the US, Canada and Australia.
Currently, it is my understanding the use of potato as a staple food is increasing in China and other countries..
Since our diets are increasingly diverse, we are substantially less dependent on our staples today.