I recall that when I was in Chiavenna (in the north, bordering Switzerland) there is a valley with a large chestnut forest. Chestnuts used to be a staple in tha

I recall that when I was in Chiavenna (in the north, bordering Switzerland) there is a valley with a large chestnut forest. Chestnuts used to be a staple in that region. You can also read up on the ancient roman diet, there are many sources on that.