I mentioned a while ago in a b*e*it thread, that our diet has changed considerably! When many of us grew-up, a Sunday roast with two (root!) veg, was an "occasion". Tinned fruit on a Sunday. Grapes were ONLY associated with hospital visits!
I am NOW buying grapes - presumably - FLOWN half way round the world from Chile, F.F.S. !!
Pretty certain that a huge amount of the current items making-up the high proportion of imports, are superfluous "nice-to-have", but not necessarily critical to the state of the nation's health!!