This statement can easily be justified by the following points -
(i) Traders and travellers introduced new crops to the lands they travelled.
(ii) Ready food stuffs in distant parts of the world might share common origins. It is believed that noodles travelled West from China to become spaghetti.
(iii) Arab traders, perhaps took ‘pasta’ to Sicily in Italy.
(iv) Many of our common foods like potatoes, soya,
groundnuts, maize, tomatoes, chillies were not known to us. These foods came from American Indians and we became gradually dependent on these.