Those foods should have been consumed in at least one third country for at least 25 years as a part of the customary diet of a significant number of people.
Maidir leis na bianna sin, ba cheart iad a bheith á dtomhailt i dtríú tír amháin ar a laghad ar feadh 25 bliana ar a laghad mar chuid de ghnáthaiste bia ag líon suntasach daoine.